9:45pm: Lincecum's no-trade clause is likely to be a moot point, as general manager Brian Sabean said today on KNBR radio: "I find it hard to believe we'll see Timmy in another uniform this year" (via Hank Schulman of the San Francisco Chronicle on Twitter).
Lincecum told Schulman's colleague, John Shea, that he's not worried about trade talk, especially after Sabean's comments (Twitter link).
7:06pm: Tim Lincecum has a previously unreported limited no-trade clause in his contract that would allow him to block trades to eight teams, according to Jon Heyman of CBS Sports. The Red Sox and Tigers aren't on that list, he adds, alluding to a report from earlier in the week that the Tigers have interest in acquiring "The Freak" and converting him to a reliever.
A Tigers acquisition is a "major long shot," and one NL executive called the idea of a team acquiring Lincecum and converting him into a closer "far-fetched." Heyman adds that Lincecum likely wouldn't be happy about the move anyway. He prefers to start, and because he's just over two months away from hitting the open market for the first time, a move to the bullpen may reduce his free agent value.
The 29-year-old Lincecum has a 4.26 ERA with 9.7 K/9, 3.7 BB/9 and a 46.2 percent ground-ball rate in 116 1/3 innings this season. He's in the final season of a two-year, $40.5MM contract he signed with the Giants to avoid arbitration prior to the 2012 campaign. He's lost significant life on his fastball and seen his command worsen in that time, leading to results that look more like a fourth or fifth starter than a two-time Cy Young winner.