According to the Detroit News, Bonderman suggested that he pitch out of the bullpen in order for a better opportunity to get back into the Major Leagues.
"We like what we have seen," Dombrowski said. "He's shown the ability that he can be a big league pitcher. We'll just have to wait and kind of sort out this time period and see what happens. He's done a good job for us."
Bonderman made seven starts with the Mariners this season, going 1-3 with a 4.93 ERA and 1.49 WHIP in 38 1/3 innings before being designated for assignment.
After making his Major League debut for the Tigers at 20 years old in 2003, Bonderman went 67-77 over 207 games (193 starts) for the Tigers from '03-'10.
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. Bobby Nightengale is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.