Arch Manning's official injury diagnosis revealed

Texas announced that Manning is officially in concussion protocol today.
Texas v Mississippi State
Texas v Mississippi State | Justin Ford/GettyImages

The Longhorns officially announced that Arch Manning suffered a concussion against the Mississippi State Bulldogs, and that he missed practice today due to being in protocol.

Depending on the severity of the concussion, which hasn't been disclosed yet, it can take anywhere from 7-14 days to recover. That makes his availability for at least week 10's matchup against Vanderbilt in serious doubt.

As we saw after his injury on Saturday night, Troy transfer QB Matthew Caldwell was the next man up and will most likely be the starting quarterback against the Commodores this weekend at home.