Viljami Sinisalo, born on 11 October 2001 (age 24), is a Finnish goalkeeper at Celtic. A commanding 6ft 5in (1.96m), he wears the number 12 shirt and has become a regular first-team presence rather than a name parked on the edge of the squad.
He came through at Aston Villa and had loan experience elsewhere, including a short spell at Burton Albion in 2022-2023. Celtic then brought him in from Villa in July 2024 for around £1m, a sensible enough fee for a young goalkeeper with size, grounding and room to grow.
His Celtic spell has quickly become the main part of his senior career. Across three seasons he has made 18 league appearances, with 12 of them coming in 2025-2026. He has also featured in the Scottish Cup and Europa League, while continuing to be involved with Finland, including two World Cup qualifying appearances this season.
Sinisalo has already collected two Premiership titles and a League Cup with Celtic, as well as being part of a side that finished runners-up in the Scottish Cup. That is a tidy start, though goalkeepers at Celtic tend to be judged less by medal counts than by how calmly they deal with long quiet spells and sudden trouble.
His current market value is around £850,000, according to Transfermarkt. Still only 24, Sinisalo is no longer just a developing option at Celtic: he is part of the working first-team picture, with his career now shaped chiefly by what he does in Glasgow.
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