Patosi scored the opening goal for his team in a 4-2 success at Germinal Beerschot, putting behind them the disappointing of losing the Super Cup to Anderlecht last weekend.
The 19-year-old will be pleased with a goal in his opening League game of what could be a pivotal campaign in his career.
Also in Belgium, Bafana Bafana right-back Anele Ngcongca played as Genk started with a 3-3 home draw against Cercle Brugge, while neither Daylon Claasen (injured0 or Lance Davis (not selected) played for Lierse as they lost 2-0 at Gent.
Darren Keet started on the bench for Kortrijk against defending champions Anderlecht, but was introduced on 62 minutes after the hosts had their regular number one, Kristof van Hout, sent-off.
In Sweden, May Mahlangu and Helsingborf continued their stuttering defence of their League title with a surprise 2-1 home loss to Norrkoping, while Bradley Ralani played for Landskrona in the second-tier as they went down 2-0 to Brommapojkarna.
Thulani Serero was left on the bench for Ajax Amsterdam in their 1-0 friendly win at newly-promoted English Premiership side Southampton, while Kagisho Dikgacoi got his first run of the pre-season in a 2-0 win for Crystal Palace at Aldershot.