Andres Nocioni tied the game at 105 with a dunk and then after a
series of tips Allen scored.
Milwaukee's Andre Barrett missed a fadeaway 3-pointer that was
after time expired in overtime.
Chicago (3-3) trailed 94-81 with 6:26 left in the game, but the
Chicago reserves responded with a 18-3 run.
Allen hit two free throws to cut Milwaukee's lead to 96-90 and
Jannero Pargo's 3-pointer got the Bulls within 96-95 with 2:25
left. Randy Holcomb, who scored 12 of his 14 points in the fourth
quarter, hit two free throws to tie it at 97 and then had a steal
and a dunk to give Chicago a 99-97 lead with 1:27 left.
Barrett hit a jumper with 10.6 seconds left for the Bucks to tie
the game at 99.
Michael Redd scored 19 points and Charlie Bell added 16 to lead
the Bucks (3-2). Andrew Bogut, the first overall pick in the NBA
draft, scored 10 points in 29 minutes for Milwaukee.
Darius Songaila had 14 points off the bench for Chicago and Luol
Deng added 11.
Joe Smith (sore left knee), Jiri Welsch (sore left quad) and
Josh Harris (sore right ankle) missed the game for Milwaukee.
Tim Thomas missed his third straight preseason game for Chicago
with a sprained left ankle.
After struggling in the first five preseason games as a starter,
Ben Gordon, came off the bench and scored 10 points. Gordon won the
NBA's Sixth Man of the Year award last season.