By Andrew McCarty Fans are calling a Los Angeles Rams tight end a “cheater” tonight after an opening-drive touchdown pass from Matthew Stafford to wide receiver Puka Nacua. Rams tight end Davis Allen appeared to set somewhat of a pick for Nacua by running in front of Saints linebacker Pete Werner. At least a few fans seemed to notice Allen stepping on Werner’s foot. “savvy play by TE 87 here to stomp on Werner’s foot to open up the passing lane,” analyst Warren Sharp said. “Cheaters,” another fan called out. A closer look at the play, though, shows that Allen didn’t actually step on Werner’s f…