Sanchez (1-3) took the loss Tuesday against the Reds, allowing five runs (one earned) on four hits and three walks over three innings. He struck out three.
Manager Rob Thomson said Walker (shoulder) will be activated from the 15-day injured list to start Sunday against the Padres, Alex Coffey of The Philadelphia Inquirer reports.
Suarez (4-0) earned the victory Monday, allowing two hits and one walk over seven scoreless innings against the Reds. He struck out five.
Philadelphia Phillies
PHI
Rotowire: Apr 22, 7:58pm
McGowan struck out four and allowed two earned runs on three hits and one walk over 3.2 innings Thursday for Double-A Reading after being reinstated from the development list.
Phillies manager Rob Thomson implied Friday that Turnbull will likely move to the bullpen after he starts Wednesday's game in Cincinnati, MLB.com reports.
Walker (shoulder) struck out one and allowed four earned runs on seven hits and three walks over 6.1 innings in the third start of his rehab assignment Sunday with Triple-A Lehigh Valley.
Wheeler (1-3) collected the victory Saturday versus the White Sox, yielding just one hit and two walks over 7.1 shutout innings. He notched eight strikeouts.