Posted By Lynn Worthy, Sun Staff

A hamstring injury has Chicago Bulls starting guard Ben Gordon listed as day-to-day heading into Game 5 of the first round NBA Playoffs series with the Boston Celtics at the TD Banknorth Garden on Tuesday night.

The series is tied 2-2 with both Bulls wins coming in either overtime or double overtime.

According to the team's website, Gordon injured his left hamstring on in the second quarter of Game 4 on Sunday. He was evaluated by team physician Dr. Brian Cole of Rush University Medical Center and found to have a strain to his left hamstring. An MRI on Monday morning confirmed the diagnosis.

Gordon, the team's leading scorer during the regular season and the playoffs, has averaged just under 25 points per game (24.8) in four games in the series against Boston. He scored 42 points in the most recent contest in Boston (Game 2).