Some have suggested that quarterback Johnny Manziel’s best chance of getting back into the NFL would happen only if his former coach at Texas A&M, Kevin Sumlin, were to jump to the next level. But Manziel could be burning that bridge, too.

Sumlin recently told Arizona Sports 98.7 FM in Phoenix that he has been unable to contact Manziel.

“I had texted him a couple of times and given him a call but haven’t got a return back,” Sumlin said. “So from that standpoint it’s a little unnerving. But there’s gonna come a time where he’s ready to communicate. . . . Our concern is for his well-being, and has nothing to do with football and has everything to do with life. It’s important that he knows that.”

Sumlin said he last saw Manziel at former Aggies teammate Mike Evans‘ wedding, in February.