Lambert, who had suffered consecutive losses at light heavyweight to Wilson Gouveia and Luis Cane has decided to try his hand at middleweight against Day, who made his UFC debut last April defeating Alan Belcher at UFC 83.

Day is coming of a first round TKO at the hands of Michael Bisping in his last effort at UFC 85 and both men need to secure a victory to keep their UFC hopes viable.

Below is a look at the full official fight card for UFC 88:

Main Card:

Chuck Liddell (21-5) vs. Rashad Evans (11-0-1)

Rich Franklin (23-3) vs. Matt Hamill (4-1)

Karo Parisyan (18-5) vs. Yoshiyuki “Zenko” Yoshida (10-2)

Dan Henderson (22-7) vs. Rousimar Palhares (8-1)

Nate Marquardt (26-8-2) vs. Martin Kampmann (16-2)

Preliminary Card:

Thiago Tavares (13-2) vs. Kurt Pellegrino (15-4)

Tim Boetsch (7-2) vs. James Lee (13-3)

Matt Brown (7-6) vs. Dong Hyun “Stun Gun” Kim (10-0-1)

Roan Carneiro (12-7) vs. Ryo Chonan (14-8)

Jason Lambert (23-8) vs. Jason Day (17-7)