The Mets have reinstated Senga (spine/arm) from the 15-day injured list to start Tuesday's game against the Reds.
Senga will return to the big-league club after a seven-week absence due to back and arm injuries. The 33-year-old built up to 75 pitches and six innings during his fourth and final rehab outing, so he'll likely still have some minor workload limitations early on. The Mets optioned Jonathan Pintaro to Triple-A Syracuse to make room for Senga on the active roster.