Charles Leno Jr. has agreed upon a four-year, $38 million contract extension with the Chicago Bears.

Leno's deal with the Bears includes $21.5 million in guarantees.

"I think he's played good, solid football," John Fox recently said of Leno. "I think as a football team we all have to get better. But he's been a dependable guy. He's pretty reliable and dependable."

Leno took over the Bears' left tackle position in 2015.