Tommy Milone, rather than Montero, is in line to start Wednesday's game against the Giants, Anthony DiComo of MLB.com reports.
Montero was initially listed as the Mets' probable starter for Wednesday, but the team elected to alter their rotation after picking up Milone on a waiver claim over the weekend. Milone was scheduled to throw a bullpen session in front of the Mets' brass Monday, and assuming everything went smoothly, he'll step in as the Mets' fifth starter for the time being while Noah Syndergaard (back) remains on the 60-day disabled list. Montero didn't make a favorable impression while starting in place of Syndergaard on May 5 against the Marlins, surrendering five runs on seven hits and four walks in 3.2 innings.