Championship season: 1963-64 Boston Celtics
Career statistics: 704 G, 17.0 PPG, 9.5 RPG, 1.6 APG
Championship season statistics: 106 G, 6.6 PPG, 2.9 RPG, 0.5 APG
Age happens. Players can't control it, so while a player is on the decline they fill a role that fits a team and it can be really helpful. Clyde Lovellette was a four-time All-Star and an NBA and NCAA champion, but at the twilight of his career he took on the role of backup big man to Bill Russell. He did his job well, helping the Celtics win two championships in a row.
Clyde Lovellette explained his role and playing behind Bill Russell in an interview last year:
"It was great to sit there and watch him, because at that time my career was in the twilight. I wasn't a starter at that time, so to sit and watch him play and then go in and relieve him every once in a while was great."