Last updated Saturday January 28 at 14:13 BST
The Hearts striker is believed to be undergoing a medical at Portman Road
The former Leicester midfielder has said he is available to play in tomorrow's clash with Dunfermline, and wants to help the club into the top six.
The 800m runner from Renfrewshire won a late call-up to compete in Glasgow after Jenny Meadows was forced to retire from event.