Dubois, who was in Monday's lineup against the Omaha Royals, is wearing uniform No. 41.
Now in his third stint with the I-Cubs, entering Monday's game, Dubois had played in 113 games with Iowa. In 109 games with Iowa in 2004, he hit .316 (122-for-386) driving in 99 runs with 31 doubles and 15 home runs.
Dubois made his major league debut on May 19, 2004. In 86 major league games, he is a career .233 hitter with 10 home runs.
In 33 games with the Clippers the season, Dubois hit .217 (20-for-92) with 18 RBI and four home runs.
The addition of Dubois puts Iowa's current roster at 25.
The I-Cubs play game two of a four-game series at Omaha tonight, before returning to Principal Park Friday at 7:05 for the start of an eight-game homestand beginning with the Oklahoma RedHawks.
To order tickets for the game, or any future home games, call the Iowa Cubs at (515) 243-6111 or order on-line at www.iowacubs.com