GLASGOW, SCOTLAND - MAY 21: St Mirren's Mikael Mandron celebrates Killian Phillips goal to make it 1-0 during a William Hill Premiership Playoff Final First Leg match between Partick Thistle and St Mirren at The Wyre Stadium at Firhill, on May 21, 2026, in Glasgow, Scotland. (Photo by Ruari Williamson / SNS Group)

GLASGOW, SCOTLAND - MAY 21: St Mirren's Miguel Freckleton celebrates Killian Phillips goal to make it 1-0 during a William Hill Premiership Playoff Final First Leg match between Partick Thistle and St Mirren at The Wyre Stadium at Firhill, on May 21, 2026, in Glasgow, Scotland. (Photo by Ruari Williamson / SNS Group)

GLASGOW, SCOTLAND - MAY 21: St Mirren's Miguel Freckleton celebrates Killian Phillips goal to make it 1-0 during a William Hill Premiership Playoff Final First Leg match between Partick Thistle and St Mirren at The Wyre Stadium at Firhill, on May 21, 2026, in Glasgow, Scotland. (Photo by Ruari Williamson / SNS Group)

GLASGOW, SCOTLAND - MAY 21: Partick Thistle's Lee Ashcroft at full time during a William Hill Premiership Playoff Final First Leg match between Partick Thistle and St Mirren at The Wyre Stadium at Firhill, on May 21, 2026, in Glasgow, Scotland. (Photo by Craig Williamson / SNS Group)

GLASGOW, SCOTLAND - MAY 21: Partick Thistle's Aidan Fitzpatrick at full time during a William Hill Premiership Playoff Final First Leg match between Partick Thistle and St Mirren at The Wyre Stadium at Firhill, on May 21, 2026, in Glasgow, Scotland. (Photo by Craig Williamson / SNS Group)