Gibson, who spent the 2006-07 campaign on loan at Royal Antwerp and the majority of last season at Wolverhampton Wanderers, has two Irish caps to his name, both as a substitute under Trapattoni's predecessor, Steve Staunton.
He proposed instead a substitute under which only the very smallest states could vote in February; all the others would vote whenever they chose from March to June, as they do now.
With Mohamed Diamé injured, Jonjo Shelvey – a £12m, £80,000 a week McClaren recruit last January but mainly a substitute under his successor – may be handed a rare chance to remind everyone of the potential that once made him an England midfielder on Wednesday.
This season, the Scotland Under-19 international has made two appearances as a substitute under Mark Warburton.
Similarly, in season two, actor Dustin Hoffman had guest starred in the episode "Lisa's Substitute" under the name "Sam Etic".
Starting the 2013 2014 season as a first-team man, he eventually became a substitute under the coach Eugenio Corini.
