William Sell is a 28-year-old professional football player from NOR. He currently plays for Lyn Oslo, wearing the number 4 shirt. He plays primarily as a Defender. His current market value is estimated at 200K €.

His most recent move was a Free from Mjondalen IF to Lyn Oslo on 2021-08-31.

Throughout the Norwegian 1.Divisjon 2025, William Sell featured in 26 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.