Wes Hoolahan is looking forward to renewing brief but strained relations with Roy Keane when Celtic visit Livingston in the SPL in March.
The Dubliner completed his move to Livingston from Shelbourne yesterday for an undisclosed fee until 2008.
The former Republic of Ireland under-21 star goes straight into Paul Lambert's squad for the Tennent's Scottish Cup third round tie against Alloa on Saturday.
But the 22-year-old has one eye on the SPL encounter with his boyhood heroes Celtic later on in the season.
Hoolahan said: "I played against Roy Keane at Tolka Park in a pre-season friendly for Shelbourne.
"We lost 5-0 and it was a thrill to play against Keano, he was as hard as nails and it was no friendly as it was played like a league match.
"I am a massive Celtic fan and it will be great to face him again."