Joshua will now defend his WBA and IBF titles against Cameroonian Takam in Cardiff after Pulev pulled out of the October 28 bout with a shoulder injury.
Smith believes Joshua will now have to change his tactics as Takam has a different build to Pulev.
And he has recalled a previous time when James ‘Bonecrusher’ Smith upset the odds and beat Tim Witherspoon when he was called in as a late replacement.
“It’s 12 days notice, these things happen in boxing, we’ve seen it time and time again through the years,” Smith said.
“But it’s the first time for AJ, so it will be very interesting to see.
“He has been training for Pulev, big, strong, tough, tall, Bulgarian. In comes the six-foot one and-a-half, shorter, stockier, come-forward fighter in Carlos Takam.
“He is a very decent replacement at this hour. Obviously the worry for AJ is that he’s got to look tactically at how he goes about things differently.
“Things can upset, we have had it through history. I remember when James ‘Bonecrusher’ Smith came in at very short notice and knocked Tim Witherspoon out at Madison Square Garden.
“I think Bonecrusher Smith was 17-5 at the time and he won it in a round and became World Heavyweight Champion.
“Takam will still be a big underdog against Anthony Joshua but he’s got no pressure.
“He’s fighting fit, he’s been training for weeks, he’s ready to go.
“So all the pressure moves onto Anthony Joshua’s big shoulders.”
Source : EXPRESS