June 4. His ERA was 1.37 through June 17, but he had an 8.82 ERA over his next 13 games, raising his season total to 3.32 on July 26. He had a 1.11 ERA for the rest of the season to finish the year with a 2.45 mark. In 70 games (all in relief, he would never make another start in the major leagues), Guetterman had a 5–5 record, 51 strikeouts, 26 walks, and 98 hits allowed in 103 innings pitched. He had 13 saves, which would be the highest total of his career, and his 70 games pitched ranked fifth among AL relievers. Against the Rangers on April 13, 1990, Guetterman pitched a scoreless sixth through eighth innings to help preserve a 3–0 victory. He also pitched a scoreless sixth through eighth innings on May 25, helping preserve a 6–3 victory over the Royals. Entering a tie game against the Milwaukee Brewers on June 20, he threw a scoreless eighth and ninth innings, earning the win after Roberto Kelly had hit a home run to give the Yankees the winning margin of victory in the top of the ninth. On July 7, he entered a tie game against the Minnesota Twins in the ninth inning and held the team to one hit in four innings, earning the win as the Yankees scored in the bottom of the 12th. He suffered a strained ribcage on July 18 and was placed on the disabled list the next day. Activated on August 3, he allowed two runs over innings against the Indians that night but earned the win in a 6–4 victory. Relieving Mark Leiter after four innings against the Baltimore Orioles on September 24, Guetterman pitched five scoreless innings but had a no decision in an eventual 6–3, 10-inning loss. Though he did not start a single game in 1990, Guetterman's 11 wins were the most on the Yankees, more than any of their starters had. In 64 games, he had an 11–7 record, two saves, a 3.39 ERA, 48 strikeouts, 26 walks, and 80 hits allowed in 93 innings pitched. Dissatisfaction with workload, trade to the Mets (1991–92) Guetterman had a 1.59 ERA in his first 33 appearances for the Yankees in 1991. He recorded three saves for the team in May, then achieved saves in back-to-back appearances July 1 and 4, pitching four shutout innings against the Indians to