The Mets have placed Jason Vargas on the 10-day injured list after the lefty exited his Sunday afternoon start with a hamstring injury. They also activated Justin Wilson from the IL, called up Corey Oswalt from Syracuse, and optioned Tim Peterson to Syracuse. Steven Matz, who got an injection in his elbow for his nerve issue, has not yet been placed on the IL, per Anthony DiComo.
Vargas, who the Mets were comfortable with as their fifth starter all winter and to begin the season, has been one of the worst pitchers in baseball so far this year. He has a 5.92 ERA and 5.78 FIP in just 24.1 innings over six starts and one relief appearance.
Wilson, who the Mets signed to a two-year deal during the offseason, has a 3.24 ERA and 6.51 FIP in 8.1 innings of relief so far this year and spent his stint on the disabled list because of elbow soreness.
As for the two other pitchers involved in these roster moves, Oswalt has a 12.15 ERA and 6.30 FIP in 6.2 major league innings so far this year, while Peterson has a 2.74 ERA and 5.51 FIP in his 6.1 major league innings.