The latest chapter in the extraordinary career of Robbie Keane could begin tonight.

The Republic of Ireland skipper could start for Celtic in tonight’s SPL trip to Kilmarnock, after joining the Old Firm club on loan until the end of the season.

Celtic lie ten points behind their Glasgow rivals Rangers, albeit with a game in hand.

Celtic Chief Executive Peter Lawwell has refused to reveal how Keane’s salary – reportedly in the region of £65,000 a week – would be paid and denied his signing was merely a ploy to appease disgruntled supporters.