Tim Wakefield is on track to start Saturday against the White Sox according to Rob Bradford from WEEI.com:
Tim Wakefield, who threw 25 pitches in a side session Thursday, has been told that he will be the Red Sox' scheduled starter Saturday in Chicago against the White Sox if he experiences no setbacks Friday. Junichi Tazawa was originally slated to start Saturday, but after Wakefield's bullpen session at Tropicana Field prior to the Red Sox' 6-3 win over the Rays, it was determined that, barring any worsening of his back or calf, he was fit to make the Saturday start.
Last time Wake faced Chicago he went 7 innings and gave up just 1 earned run. The game will be televised on Fox.