The Patriots hosted end Luis Castillo, who was released by the Chargers, on a visit Saturday, a league source confirmed.
Castillo, 28, is solid football player, who at 6-3 and 290 pounds has played end for the Chargers but can play anywhere on the line for the Patriots.
Like some of the other players the Patriots have signed, Castillo's available because of injury concerns. He broke his leg in the 2011 season opener and missed the rest of the season. Castillo also missed chunks of the '06 and '07 seasons.
Castillo's medicals are fine now and he should be ready when off-season workouts begin in mid-April.
The Chargers released Castillo instead of paying a $1 million bonus and $3.9 million base salary. They wouldn't mind having him back. Castillo also visited the Chiefs.
Castillo was viewed has one of the top young defensive linemen in the league. His 2010 season was a little disappointing, but he still has a good reputation around the league. He'd be another low risk/high reward guy for the Patriots, should he sign.
The Patriots are basically just adding as many good football players this offseason, and they'll figure out how to use them later.
The Boston Herald first reported the visit.