Bickell and Hawks teammate Brandon Bollig were at Wrigley Field on Friday as guest conductors for the seventh-inning stretch. Bickell was wearing a soft cast on the hand and said on the television broadcast his recovery time is about three weeks.
The two Blackhawks took batting practice and shagged fly balls before the Cubs opened a series against the Pittsburgh Pirates.
"I tore the tendon in my thumb and had surgery," Bickell said after going through drills with the Cubs. "I was able to get a couple of hits with it, but maybe in the future I will take some swings again."
Bickell, who recently signed a four-year, $16 million deal to remain with the Blackhawks, scored the tying goal with 1:16 remaining in Game 6 of the Stanley Cup finals against the Boston Bruins, a game the Hawks won to claim the Cup. He came up big in the playoffs, recording nine goals and eight assists during the Blackhawks' Stanley Cup run. He had nine goals and 14 assists in 48 regular-season games in 2013.
Bickell was selected by the Blackhawks in the second round of the 2004 draft. He has 40 goals and 50 assists in 220 regular-season games with the Blackhawks since the 2006-07 season.