4:30 PM PST -- TMZ Sports has obtained a pic of Trevone Boykin laying on the sidewalk after being detained by cops. By our count, at least 7 cops were on scene to handle the situation.
One witness at the scene tells us Boykin didn't appear in his right mind -- adding "He was trying to go to war with everyone."
TCU QB Trevone Boykin was arrested Thursday morning after a bar fight where its alleged he struck a police officer ... and has been suspended for Friday's Alamo Bowl against Oregon.
Reports say Boykin got into an altercation in a San Antonio bar after being heckled by patrons ... and when cops showed up to restore order he popped an officer.
Boykin was arrested and charged with assault on a public official, resisting arrest, and public intoxication.
Story developing ...