Kyler Murray's too darn short to play quarterback in the NFL and he chose the wrong sport ... so says Joe Theismann.
"From my perspective, I think he's going to be challenged in the NFL," the Redskins legend tells TMZ Sports ... "I think he should've taken baseball. That would have been my suggestion to him."
Of course, Kyler's height has been a HUGE talking point ever since the Heisman Trophy winner decided to forgo a baseball career with the Oakland A's to enter this month's NFL draft.
The Oklahoma QB measured in at 5-10, 207 pounds at February's combine .