Anthony Joshua's world titles could "slip from him again" if he does not take the fight to Kubrat Pulev, says trainer Peter Fury.
The Briton shockingly lost his IBF, WBA and WBO belts to Andy Ruiz Jr in July 2019 before regaining them with a convincing performance in a December rematch.
Joshua's next defence is against Pulev, though a venue and a date have yet to be confirmed due to continued uncertainty over the coronavirus pandemic.
Should Joshua come through unscathed, a lucrative unification bout with countryman Tyson Fury is on the cards, providing the WBC title holder defends his own strap against Deontay Wilder.
Regiment pic.twitter.com/0PihW9a0u9
— Anthony Joshua (@anthonyfjoshua) July 11, 2020
But Peter Fury, Tyson's uncle and former trainer, thinks Joshua can ill afford to look too far ahead.
"Pulev is very cagey and he'll come in top condition as well, and he's really up for this fight," he told Sky Sports.
"He's got a very good jab. He's a very underestimated boxer is Pulev. He's very awkward.
"You've got to break him down and AJ will have to take chances in this fight, because he's not going to just simply be able to land that double jab and right hand on Pulev, no matter how sharp he is.
"AJ has got to take it to him and be explosive, but be clever with it. You have to fancy the younger man, but like I said, you can't put anything past Pulev, because he's a very cute, professional fighter.
"It's not a pushover fight this, it's a serious fight. When people are famous in boxing everyone expects them to win, but it's not the case in this fight.
"This fight is a dangerous fight for him. If he doesn't keep 100 per cent focused, this fight can slip from him again."