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Middlesbrough lost ground on Championship leaders Brighton after being held to a goalless draw by a stubborn Fulham side.
The hosts failed to break down their opponents at the Riverside and subsequently slipped to third behind Reading and the Seagulls.
Fulham - led by the tireless Ross McCormack - had their moments but couldn't snatch victory.
Aitor Karanka accused Kit Symons' side of time-wasting but the Whites boss hit back at his Boro counterpart.
"They [Middlesbrough] were having a bit of a grumble during the first half," he said. "It wasn't something we set out to do.
"We've had a few chats about managing the game better and you come to somewhere like here, you're not going to go rushing after balls when you're drawing."
