Complex sentence: He played two games for Uruguay U20 against Peru in that month, the first he entered as a substitute in the 83rd minute, in the second fixture he was brought on in the 45th minute.
Split into simpler sentences: He played two games for Uruguay U20 against Peru in that month. In the first he entered as a substitute in the 83rd minute; in the second fixture he was brought on in the 45th minute.