Nola (6-2) picked up the win Sunday against the Nationals, allowing three runs (two earned) on two hits and three walks across seven innings. He struck out five.
Walker (toe) is expected to be ready to make his next scheduled start Wednesday at home versus the Rangers, Alex Coffey of The Philadelphia Inquirer reports.
Sanchez allowed two runs on eight hits and no walks while striking out eight batters over seven innings in a no-decision against Washington on Saturday.
X-rays came back negative on Walker's left foot after he was forced to exit Thursday's start against the Mets in the fourth inning, Matt Gelb of The Athletic reports.
Alvarado (1-2) took the loss during Thursday's 11-inning 6-5 loss to the Mets, allowing two runs (one earned) on two hits and no walks across one inning. He struck out two.