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Rampage in 'killer mode' for Teixeira fight

Rampage Jackson is ready to leave the UFC © Getty Images

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England's Jimi Manuwa has warned Glover Teixeira that Rampage Jackson is in the mood to do serious damage when the former light-heavyweight champion bids farewell to the UFC this weekend.

Manuwa has spent weeks working with Rampage ahead of his own fight, which takes place against Cyrille Diabate in London on February 16.

Rampage will quit the UFC after Saturday's clash in Chicago, which acts as the co-main event to the flyweight title bout between Demetrious Johnson and John Dodson. A lightweight collision between Donald Cerrone and Anthony Pettis is also on the card.

After defeats to Jon Jones and Ryan Bader it is anticipated that Jackson's career is winding down in his 35th year, but Manuwa warns that there is a fierce determination inside the American to bow out with a victory this weekend.

"He's in killer mode," Manuwa told ESPN. "He's looking good and he's focused. I've been speaking to him on the phone as well and he is really, really focused.

"You can't write Rampage off. Their styles match up really well."

Rampage and Manuwa, both 205-pounders, like to fight aggressively and look for the knockout inside the Octagon, so Manuwa says sparring has been "interesting". And the Brit will be looking to make sure a slice of Rampage remains in the UFC after he has gone, revealing he has picked up one or two tricks to use against Diabate.

"We get a good spar in, we've both been learning from each other," Manuwa said. "On the wrestling side of things Rampage has been great.

"We've got similar styles so it's working really well. He's taught me a few things but I won't reveal them until fight night."

© ESPN Sports Media Ltd.