Chicago, IL - Chicago Bulls forward Taj Gibson underwent an arthroscopy and repair of his left ankle on Tuesday, the team announced Friday.

His estimated time to return to full basketball activity is approximately four months.

The 29-year old Gibson appeared in 62 games (17 starts) this past season and averaged 10.3 points, 6.4 rebounds and 1.2 blocks. He also averaged 7.4 points and 5.5 rebounds in all 12 of Chicago's playoff games, making two starts.