Kurt Zouma was left shocked by Chelsea's decision to release captain John Terry at the end of the season and does not know how the former England captain can be replaced.
Terry has announced he is leaving the Blues he joined at the age of 14 after they opted not to offer him a new contract.
The 35-year-old, who has made 696 appearances so far for Chelsea, had been hoping to secure a 12-month extension but was informed by the club of their decision before last week's win at Arsenal.
However, Zouma believes his central-defensive partner could play on for another couple of years.
"I am very surprised - I didn't know," Zouma told the Evening Standard.
John Terry honours
"Now we have to see what John wants to do because I think he can play for another one or two years.
"This feels like when we lost Didier (Drogba) last summer. (Terry) is a huge personality at Chelsea. When you lose these kind of players, you have to replace them but I don't know how John can be replaced. We have to think about it.
"For me he can play many more times. He is still at a top level. He has been playing very well since I arrived at Chelsea. He can continue for sure.
"His performances have been consistent. Since I have been at the club, I haven't seen him play badly. That's the truth. He was always helping everybody.
"He has been a massive support to me. When I started my first games last year he was always talking to me. He is a legend and a very good leader. I have learnt a lot from him. I don't know what to say, I am very surprised."
Terry made Chelsea's decision public following their 5-1 FA Cup win at MK Dons on Sunday, although the club later insisted "the situation could change in the coming months".
In 22 years at Stamford Bridge he won every major club honour, including four Premier League titles, five FA Cups, three League Cups, the Europa League and the Champions League in 2012.
Terry was a pivotal figure as the Blues won their first league title in five years last season, playing every minute of all 38 games.
But he, like the rest of the team, have struggled this term with manager Jose Mourinho paying the price for their poor form with the sack in December.
Nevertheless, Terry said: "'I feel as though I'm in great nick, I'm playing great and I've got a couple of years to go. It'll just be elsewhere."
Terry does not want to play for another Premier League club, but big-money offers are likely to come in from Major League Soccer in the United States and the Chinese Super League.
He added: "Ideally I would have loved to stay, but the club is moving in a different direction.
"I needed to know now like I have done every January and sometimes it takes a couple of months to get done. Unfortunately, it was a no."
TIMELINE: John Terry's Chelsea career
John Terry started out playing for Senrab, an east London Sunday League side, before being taken on by West Ham's youth system in 1991 as a midfielder.
Terry moved to Chelsea and moved to centre back as he moved through the ranks at Stamford Bridge.
October 28, 1998
Terry made his Chelsea debut against Aston Villa in the League Cup and his first start came in January against Oldham.
The defender went out on loan to Nottingham Forest to build up first team experience; the only time he has pulled on a club shirt other than Chelsea's.
September 11, 2001
Terry was fined two weeks wages by Chelsea along with Frank Lampard, Jody Morris, Eidur Gudjohnsen and Frank Sinclair for harassing Americans in the aftermath of the 9/11 attacks.
December 5, 2001
Terry was handed the captain's armband for the first time against Charlton Athletic.
Terry was charged with assault and affray after being involved in an altercation with a bouncer at a west London nightclub along with Morris and Wimbledon's Des Byrne. He was acquitted in court.
John Terry made his England debut against Serbia and Montenegro
Terry became vice captain under Claudio Ranieri when Marcel Desailly was out of the side and formed a strong defensive partnership with William Gallas.
Jose Mourinho appointed him as captain and Chelsea won the league with the best defensive record in Football League history. He was named as player of the year and voted the best defender in the Champions League.
Terry helped Chelsea defend their title with 91 points as they wrapped it up with a 3-0 win over Manchester United.
August 10, 2006
Terry was named England captain by Steve McClaren.
October 14, 2006
Terry went in goal after Petr Cech and Carlo Cudicini were both injured, wearing the number 40 shirt of Henrique Hilario.
November 5, 2006
Terry was sent off for the first time in his Chelsea career against Tottenham as the Blues lost at White Hart Lane.
February 25, 2007
Terry, despite suffering an ankle injury in the build-up, played through the pain barrier against Arsenal in the League Cup final. He was stretchered off and taken to hospital after being accidentally kicked in the face by Abou Diaby. He returned from hospital to join in the celebrations.
Terry became the first player to lift the FA Cup at the newly rebuilt Wembley Stadium.
June 1, 2007
Terry became the first England senior player to score an international goal at the new Wembley.
May 2,1 2008
Terry slipped when taking his penalty against Manchester United in the Champions League final and missed. Had he scored Chelsea would have claimed their first European Cup. Nicolas Anelka missed soon after to hand the Red Devils the title.
Terry was again named UEFA defender of the year and Manchester City had a third bid turned down. He did win the FA Cup against Everton that year.
November 8 2009
Terry scored the winning goal against Manchester United to preserve their perfect home record.
February 5, 2010
Fabio Capello sacked Terry as England captain after allegations regarding his private life.
May 9, 2010
Terry lifted the Premier League title once again before captaining the Blues to his fourth FA Cup triumph.
March 19, 2011
Capello reinstated Terry as England captain after a long-term injury to Rio Ferdinand.
November 2, 2011
The captain was placed under police investigation following an allegation of racist abuse made towards QPR defender Anton Ferdinand.
December 21, 2011
Terry was charged for this offence by the Crown Prosecution Service.
December 31, 2011
The defender captained Chelsea for the 400th time against Aston Villa. That season he was the world's third best passer behind Xavi and Swansea's Leon Britton.
February 3, 2012
The FA stripped Terry of the captaincy over the allegations Terry racially abused Anton Ferdinand. Fabio Capello resigned in protest at the decision.
April 24, 2012
Terry was sent off for kneeing Alexis Sanchez off the ball in the Champions League semi final but the Blues reached the final. He won another FA Cup as the Blues beat Liverpool in the final.
May 19, 2012
Terry watched his Chelsea side beat Bayern Munich and lifted the trophy in his full kit, prompting memes across the internet.
July 13, 2012
Terry was acquitted by a court as it was impossible to be sure about the words used by the defender towards Anton Ferdinand
July 27, 2012
Terry was charged by the FA for using insulting words including a reference to colour.
Terry announced his retirement from international football as his position had become untenable.
September 27, 2012
Terry was banned for four games for racially abusing Anton Ferdinand and fined £220,000.
November 11, 2012
Terry suffered a knee injury against Liverpool and was ruled out until the end of January. He was left out of the side that won the Europa League agreed a one year contract that summer after looking as if he was on the way out of Stamford Bridge.
Restored to the side by Jose Mourinho, Terry was a regular once again and won another new contract.
Terry captained Chelsea for the 500th time against Crystal Palace and led his side to the league title as well as another League Cup triumph, scoring the opening goal against Tottenham.
Another Premier League title goes John Terry's way as he plays every minute of their campaign
August 16, 2015
Jose Mourinho subbed John Terry at half-time for tactical reasons. The first time the Portuguese boss had done so.
January 31, 2016
Terry announces his contract won't be renewed and he will leave Chelsea at the end of the season.
May 7 2016
Terry is sent off at Sunderland, his second red card of the season, meaning he will miss the final two games of the season
May 13, 2016
Interim manager Guus Hiddink's final pre-match press conference is used to announce Chelsea have performed a U-turn and offered Terry a new deal.
May 15, 2016
Suspended Terry takes part in a lap of honour at the Bridge and addresses the fans, hinting he wants to stay, as the Blues close the season against champions Leicester.
May 18, 2016
Terry and Chelsea announce a new one-year deal has been signed, with incoming manager Antonio Conte having given his seal of approval to the contract.