Gary Kubiak

Houston Texans' head coach Gary Kubiak remains in a Houston hospital after collapsing on the field at halftime yesterday ... team officials say he's being monitored by doctors .... but he's "alert, coherent and in good spirits." Kubiak had to be carried off the field on a stretcher ... after he…

Houston Texans head coach Gary Kubiak COLLAPSED as he was walking off the field during halftime of the "Sunday Night Football" match up ... and was carted off the field while appearing to be in extreme pain. Medical personnel immediately ran over and began treating the 52-year-old coach, who…