FOXBORO -- The Patriots saw a couple of changes made to their roster on Monday.

As expected, safety and special teams ace Nate Ebner was reinstated from the reserve/did not report list and added to the 90-man roster. Patriots coach Bill Belichick confirmed on Sunday that offensive lineman Kyler Kerbyson was released in order for Ebner to be activated. 

Ebner has been training with USA Rugby since the spring in order to pursue his dream of playing rugby in the Olympics. The US Men's Rugby Sevens team, of which Ebner was a part, placed ninth overall in Rio. Though he's been conditioning, Ebner has been conditioning as a rugby player for months. He's also missed every Patriots spring workout and training camp practice, and he may need time before he's ready to participate with the Patriots, Belichick explained.

"He’s got a long way to go," Belichick said of Ebner, "but nobody will work harder at it than he will."

The Patriots also gained a roster spot on Monday as defensive back Brock Vereen was added to the reserve/retired list. The younger brother of former Patriots running back Shane Vereen, Brock was a fourth-round pick of the Bears in 2014. He will turn 24 years old on Wednesday.