FILE - In this Oct. 13, 2019, file photo, Carolina Panthers running back Christian McCaffrey (22) reacts after scoring a touchdown against the Tampa Bay Buccaneers during the second quarter of an NFL football game at Tottenham Hotspur Stadium in London. Luke McCaffrey, the younger brother of the Panthers’ star running back and son of former NFL receiver Ed McCaffrey, made an unexpected entrance for Nebraska against Indiana last week and turned in a strong performance. (AP Photo/Tim Ireland, File)