Viljami Sinisalo, born on 11 October 2001 (age 24), is a Finland international goalkeeper at Celtic. A commanding 6ft 5in (1.96m), he wears squad number 12 and has the build you would expect from a modern keeper, though the more useful point is that his form this season has been solid and consistent.
Before Celtic, Sinisalo was on the books at Aston Villa and picked up limited senior football in England, including four league appearances for Burton Albion in 2022–23. That was useful experience rather than a career-shaping spell. His move to Celtic in July 2024, for around £1m, gave his career a clearer direction.
He was part of the Celtic squad that won the Premiership and League Cup in 2024–25. Across two seasons at the club, he has made 15 league appearances and 16 in all competitions, with his 2025–26 campaign bringing nine league games, two League Cup appearances, four in the Scottish Cup and one in the Europa League.
Sinisalo has also been involved with Finland, making two European World Cup qualifying appearances this season. His current market value is around £850,000, according to Transfermarkt. At this stage, Celtic is where his senior career has properly started to take shape.
