Tony Mowbray insisted the circus surrounding Robbie Keane's arrival did not distract his Celtic side as his reign hit a new low with a 1-0 defeat at Kilmarnock.
Keane's debut for his boyhood idols went wrong as Killie ended their 31-match winless run against Celtic to hand Jimmy Calderwood his first SPL win for the Rugby Park club.
Celtic's defeat, their 11th in 36 games since Mowbray arrived last summer, left the Parkhead club 10 points behind Rangers.
The result came less that 24 hours after their title ambitions received an apparent boost when Keane signed on loan.
His unveiling at midnight on transfer deadline day brought thousands of delirious fans to Parkhead to welcome him.
Asked if Keane's reception had affected his players, Mowbray said: "I don't think so, I thought he played well.
Mowbray refused to plead for time for the club's eight new arrivals to click -- four of who played last night: "I wouldn't call for patience. The team has got to gel as quickly as it can."
Opposite number Calderwood was thrilled with his first SPL win in charge of Killie, which lifted them up to 10th in the table.
On-loan Chris Maguire struck the winner for Killie and Calderwood said: "He just loves playing the game. He used to come into my office (at Aberdeen) on a Friday if he wasn't playing and have a moan!" The new Killie boss also hailed the performance of keeper Cameron Bell, who won his personal duel with Keane, saying: "Unbelievable. That's the luck you need to win against the big teams and he's been doing it."