Aaron Cook, Red Sox starter
When the Red Sox’ rotation started breaking down in 2012, Cook was called to fill a starting role.
The 33-year-old sinkerballer joined the Red Sox as a free agent in January and started the season in the minors before he was called up to fill in for Josh Beckett in May. Cook injured his knee in his first start and wound up on the disabled list.
The soft-tossing righthander ended up going 4-11 with a 5.65 ERA, starting 18 games, the highlight being a complete-game two-hit shutout against the Mariners in Seattle.
The former Rockies All-Star, who earned $1.5 million plus incentives, became a free agent in October.