Complex sentence: This was the First-Game International as Footballer for R.S.C. Anderlecht and in the League game vs R.A.E.C. Mons on December 22,2007 made his debut for Anderlecht, when he came in with eight minutes remaining.
Split into simpler sentences: This was the First-Game International as Footballer for R.S.C. Anderlecht. And in the League game vs R.A.E.C. Mons on December 22,2007 made his debut for Anderlecht, when he came in with eight minutes remaining.