With injured starters Ray Allen (ankle), Rajon Rondo (wrist) and Jermaine O’Neal (knee) in street clothes for the start of last night’s game against the Indiana Pacers, it was imperative for the reserves on the Celtics bench to help fill the void. Led by Chris Wilcox’s 14 points and 6 rebounds, both season highs, the Celtics got a huge lift from their bench in last night’s 94-87 victory at TD Garden, outscoring Indiana’s reserves, 24-17.