Manager Martin O'Neill will have to face criticism over his Celtic team selection in Sunday's derby defeat to Rangers after "too many players didn't show up" at Ibrox, says former striker Cillian Sheridan. The ex-forward was shocked to see winger Sebastian Tounekti start ahead of summer signing Haissem Hassan, who was introduced as a half-time substitute in the 3-0 League Cup quarter-final loss. Sheridan says it will be no surprise to see O'Neill change his line-up for Thursday's Europa League opener at home to Ferencvaros, which comes just three days before a rematch with Rangers in the Scottish Premiership.