By Jacob Leeks Viewers have been left baffled after Alex Scott replaced Gary Lineker for Saturday’s edition of Match of the Day. Lineker usually hosts the main programme, with Mark Chapman in the host’s seat for Match of the Day 2. But despite a bumper offering of eight Premier League games, Lineker was nowhere to be seen on Saturday. Instead, Scott presented the 90-minute long highlights show, with Newcastle’s thrilling comeback win over West Ham given top billing. No reason was given for Lineker’s absence, with fans left confused as a result. One wrote on Twitter : “I never ever get a chance…