7:18pm: The Giants are in the process of re-signing Tanner, GM Brian Sabean told Andrew Baggarly of the San Jose Mercury News (on Twitter).
3:26pm: The Giants released Clayton Tanner, according to the team's transactions page. They had designated the left-hander for assignment to create 40-man roster space for Eric Surkamp over the weekend.
Tanner, 23, has yet to appear in the Major Leagues. The 2006 third rounder has a 3.66 ERA with 6.6 K/9 and 3.0 BB/9 in 686 1/4 minor league innings. Most recently, he logged 119 2/3 innings of 4.29 ERA ball pitching out of the rotation for the Giants' Double-A Richmond affiliate.