By Abby BittermanOU coach Lincoln Riley spoke positively about running back Trey Sermon during a teleconference Tuesday after Sermon announced his decision to transfer to Ohio State on March 22.The Sooners have been beneficiaries of the transfer portal, but Riley understands OU will lose players to the portal, too.“I think Trey saw a situation competitively that he felt like there was going to be a better opportunity to play a little more somewhere else,” Riley said.Read more on NewsOK.com