The fiancee of former NFL player Aaron Hernandez is expected to publicly respond to rumours about his sexuality.

The second part of a two-part interview with Shayanna Jenkins is scheduled to air Tuesday on the Dr Phil show.

Jenkins told host Dr Phillip McGraw on Monday that she doesn't think the former New England Patriots tight end killed himself on 19 April, as authorities have said. She says he was upbeat in their last telephone conversation before he was found hanged and there was no indication he was suicidal.

Hernandez's death came days after he was acquitted in a 2012 Boston double slaying. He was serving a life sentence in a 2013 killing.

Monday's interview ended with Dr Phil asking Jenkins about rumours that Hernandez might have been gay.