O'Neill's side will feature in the Europa League after Tuesday's 5-1 defeat by LASK after extra time, with the Austrian side winning the Champions League play-off 5-4 on aggregate. The Scottish Premiership holders have signed four players so far this window, which closes next week.

O'Neill hopes that missing out on the Champions League will not mean Celtic miss out on prospective signings, saying: "I'm hoping that's not the case." He also expressed his desire to bring in more players before the transfer deadline, stating: "I'm hoping that we can get some people in before the transfer deadline."