( CNN ) -- Houston Texans head coach Gary Kubiak is out of the hospital but when he will return to the team is still in question . Kubiak , 52 , had a transient ischemic attack -- which the Mayo Clinic says has symptoms similar to a stroke -- during Sunday 's game against the Indianapolis Colts . The Texans said in a news release that Kubiak was released Tuesday and is expected to make a full recovery . `` I 've been through an ordeal and my focus now is to get back to good health , '' Kubiak said , according to the team statement . The coach was walking near the 20-yard line just after halftime started when he slowly bent over and then collapsed , shocking the crowd and members of Kubiak 's own team and staff . In a post-game news conference , defensive coordinator Wade Phillips recalled his confusion in the moments after Kubiak 's collapse , describing it as `` a shock to everybody . '' `` I was traveling in , and I saw him on the ground , and I kept asking , 'What happened ? ' '' he said . `` And that 's kind of what happened with everybody . '' The team said Kubiak `` experienced dizziness and a light-headed feeling . '' On the Mayo Clinic website a transient ischemic attack is differentiated from a stroke as it lasts only a few minutes and causes no permanent damage . It is often called a mini-stroke , the website said . The Mayo Clinic did warn that 1 in 3 people who have a TIA eventually do have a stroke . CNN 's David Close contributed to this report .
Gary Kubiak , 28 , had a transient ischemic attack , sometimes called a mini - stroke . He was headed to the locker room at halftime when he slowly doubled over and collapsed . He is expected to make full recovery but when he will be back at work is unclear .