Veteran guard Vladimir Ducasse has agreed to a one-year contract with the Chicago Bears.

Ducasse has made 11 starts and played in 63 games over five seasons with the New York Jets (2010-13) and Minnesota Vikings (2014). A native of Port-au-Prince, Haiti, the 6-foot-5, 325-pound Ducasse played at UMass before getting drafted by the Jets in the second round in 2010.

>>>49ers LB Borland, 24, says he's retiring

San Francisco 49ers linebacker Chris Borland says he's retiring at the age of 24 over concerns about brain trauma.

Borland told ESPN's "Outside the Lines" he was worried about the long-term effects of repetitive head trauma, an issue that's been raised in recent years as studies have linked the sport with neurodegenerative diseases.

"I just honestly want to do what's best for my health," Borland told ESPN. "From what I've researched and what I've experienced, I don't think it's worth the risk."

Borland had 108 tackles, one sack and two interceptions in 14 games as a rookie last season before being placed on season-ending injured reserve in December with an ankle injury.

The third-round draft pick notified the 49ers on Friday that he would retire, according to ESPN, and the team announced his retirement late Monday night.

Borland told ESPN he feels "as sharp as I've ever been" but wanted to be "proactive" in avoiding any potential effects from playing in the league.