CHICAGO – Brady Kostecki tossed eight innings of one-run ball, and the Roosevelt baseball team swept its three-game series against Saint Xavier by breaking Monday's one-run contest open with six late runs in an 8-1 victory at Ferrell Field.

Jon Knies went 4-for-6 with three RBI with three RBI for the Lakers (7-13, 5-8 CCAC), who have won four in a row.

Roosevelt scored a run in the first and traded tallies with Saint Xavier (6-15, 4-9 CCAC) in the second before the Lakers scored two in the sixth on back-to-back RBI hits from Alvin Perez and Nick Garcia.

The Lakers tallied three in the eighth, with two coming home on a double by Knies, and another in the ninth, and that was more than enough for Kostecki's five-hit magic on the mound and Jared Jayne's scoreless ninth.

Roosevelt heads to Palos Heights for two against Trinity Christian on Tuesday.

Rookies Brady Kostecki (left) and Jon Knies (right) were the difference against Saint Xavier on Monday.