Claasen came on for the final 15 minutes as his German Bundesliga II side 1860 Munich won 2-0 at home to Nurnberg to move seven points clear of the drop-zone.
Played the first 67 minutes for Portuguese second-tier side Vitoria Guimaraes B as they won 3-1 at home to Olhanense. Thibang Phete was an unused substitute.
Came off the bench after 55 minutes but his French Ligue 2 side slipped to a 2-1 defeat at Orleans. Erasmus has now not scored for over 13 months.
Mahlangu came on after 55 minutes to help his Romanian side Dinamo Bucharest to a 1-0 home win over FC Botosani that snapped a three-game losing streak.
Masalesa played the full 90 minutes for Greek side Larissa as they won 2-1 at home to Levadiakos. It was the first time in eight appearances he has tasted victory with his new team.
Came on for the final 15 minutes as Djurgardens suffered a disappointing 2-1 Swedish Cup home loss to second-tier Degerfors.