2007-08: Played for Boras in the Allsvenskan league. In 37 games, Wesslau finished with a 3.36 goals-against average and a .886 save percentage.
2008-09: Wesslau moved up to the Swedish Elite league, where he played for Djurgarden. In 33 games for that club, he posted a 2.49 goals-against average and a .914 save percentage.
2009-10: Wesslau played in 32 games in his second season with Djugarden. He finished with a 2.29 goals-against average and a .940 save percentage. In 15 playoff games, Wesslau posted a 1.80 goals-against average and a .940 save percentage.
Wesslau is a big goaltender with good lateral movement.
Will likely play for the Springfield Falcons in 2010-11.