 Complete the following phrase:  After the 1971 season, Kison threw 92 innings for San Juan in the Puerto Rican Winter League. This led to a tired arm, which caused him to begin the 1972 season on the disabled list for the Pirates. After returning, he joined the bullpen for the Pirates, posting a 2.22 ERA through the end of May. In June, he replaced Bob Johnson in Pittsburghs starting rotation. In 32 games 18 starts for the Pirates, he had a 97 record and a 3.26 ERA. Again used as a reliever in the playoffs, he made two appearances in the 