St Johnstone have confirmed that striker Cillian Sheridan has extended his stay at McDiarmid Park until the end of the season.
The 22-year-old Irishman had arrived from CSKA Sofia, with the initial deal due to expire this month.
Sheridan, who joined the Bulgarians from Celtic in 2010, scored four goals in 15 games but has been sidelined by an injury picked up in November.
However, he is close to a return and could feature at the weekend.
Sheridan is in his second loan spell in Perth, having been farmed out to Saints by the Glasgow club before his switch to Sofia.