Neal Ardley wants to add a central defender and a left-back to his squad this week.
Callum Kennedy is back at the club after being released this summer and is hoping to earn a deal following a few pre-season run-outs for the Dons.
Kennedy would fill the void left by the departure of Jim Fenlon on the left-hand side of the back-four and boss Ardley is set to decide on his future this week.
The big kick-off is fast approaching and a League Two curtain-raiser at home to Shrewsbury is only four days away.
Ardley also needs to nail down a new centre-half following a training-ground injury to Andy Frampton during the club’s recent trip to La Manga.
“We’ve been looking,” Ardley told Dons Player of the club’s search for reinforcements. “We need more defensive cover. We’ve got a decision to make with Callum [Kennedy] and I thought he was excellent in the second-half against Havant and we’ve got a decision to make there.
“Also, we need to add another centre-back but it has to be someone that’s good enough to come in and play. People don’t often loan you players to sit on the bench, they loan you players for them to come in and play.
“Whoever we get in needs to be ready. We’ve got a lot of games in the first six weeks of the season and it’s going to be physically tough for the boys. We need to make sure we get the right person in.”
Young Dons prospect Ben Harrison, at the age of just 17, impressed on his debut as Wimbledon signed off from their pre-season programme with a 3-0 win over Conference side Aldershot Town.
However, the versatile defender is unlikely to be deemed ready to fill one of the vacant first-team spots.
“I thought Ben Harrison did really well,” Ardley added. “It’s quite funny actually, he cleans my boots so he’d better keep doing a good job on them! He’s started the season well and stepped up to play for Reevesy [Alan Reeves] with the U21s.
“On the back of that, when we’re recruiting, we’re actually saying ‘do we need a left-back’ to recruit at younger age groups because we don’t want to stop the progress of Ben. He came in and had a great debut.”