UFC 121 starts to take shape, main card officially announced

One of the biggest cards of the year is starting to fill out, so what are some of the marque matchups?

from SB Nation-

UFC 121, which is set to take place at Anaheim's Honda Center on Oct. 23, started to take more shape today with the official announcement of the event's main card. As expected, current UFC heavyweight champion Brock Lesnar will take on top contender and undefeated rising star Cain Velasquez in the night's main event. Lesnar most recently retained his title in a unification bout with Shane Carwin at UFC 116, while Velasquez hasn't competed since UFC 110 back in February.

Also on the card will be the much anticipated octagon debut of Jake Shields, who relinquished his middleweight title with the Strikeforce organization before signing on to compete at 170lbs for the UFC. Looking to spoil the newcomer's welcome will be Martin Kampmann, who also recently made the move south to welterweight. Touting a very impressive 8-2 record in the UFC, Kampmann will be looking to make a statement in this fight. He needs to follow up his dominating performance over Paulo Thiago at UFC 115 to get his name in the title conversation at welterweight. Shields is arguably under much more pressure to perform, and while a loss to Kampmann wouldn't be catastrophic, it would be a major setback for someone who was essentially brought in to compete with the top contenders at 170 pounds.

check out the rest of the card after the jump