Complex sentence: Then with the arrival of Jose Basualdo, Seymour was with frequency in the starting lineup, includying in Clásico Universitario, he scored a goal against Universidad Católica in 3-2 home loss.
Split into simpler sentences: Then with the arrival of Jose Basualdo, Seymour was frequently in the starting lineup. In Clásico Universitario he scored a goal against Universidad Católica in a 3-2 home loss.