The Carolina Panthers secured two of their own free agents Monday in an attempt to shore up the running game.
Williams could figure into Carolina's plans at guard and tackle. He was the starter at right guard entering last season but suffered a season-ending knee injury in the opener against Seattle.
He has 21 starts since signing as an undrafted free agent from Kentucky in 2009. His presence at right guard gives Carolina more flexibility if it chooses to give Nate Chandler, who was working at tackle before becoming the regular at right guard due to injuries, a shot at replacing left tackle Jordan Gross.
Williams also has started 13 games at right tackle, so he could figure into the mix there if the Panthers choose to move starter Byron Bell into Gross' spot.
Coach Ron Rivera said at Gross' recent retirement news conference that Bell and Chandler could be in the mix.
Bell also is a restricted free agent, so look for an announcement on him before free agency begins at 4 p.m. ET Tuesday.
Brockel is a big contributor on special teams as well as a factor in the running game when Carolina brings in a second tight end or fullback for blocking.