Complex sentence: The Salvadoran American made his debut with Real Salt Lake on March 15,2011, when he entered in the 88th minuteof the first leg of the 2010--11 CONCACAF Champions League semifinals against Saprissa.
Split into simpler sentences: The Salvadoran American made his debut with Real Salt Lake on March 15,2011; he entered in the 88th minute. It was the first leg of the 2010--11 CONCACAF Champions League semifinals against Saprissa.