Sox (1989–1991) On July 29, 1989, the Rangers traded Sosa with Wilson Álvarez and Scott Fletcher to the Chicago White Sox for Harold Baines and Fred Manrique. In 1990, Sosa batted .233 with 15 home runs, 70 runs batted in, 10 triples, and 32 stolen bases. He also struck out 150 times, fourth most in the American League. Sosa started the 1991 season by hitting two home runs and driving in five runs. However, he slumped for the rest of the year and batted .203 with 10 home runs and 33 runs batted in. Chicago Cubs (1992–2004) The White Sox traded Sosa and Ken Patterson to the Chicago Cubs for outfielder George Bell before the 1992 season. Sosa batted .260 with eight home runs and 25 RBIs in his first season with the Cubs. In 1993, Sosa batted .261 with 33 home runs with 93 RBIs. He also showed his speed by stealing 38 bases and became the Cubs' first 30-30 player. Sosa continued to hit for power and speed in 1994 but he also improved his batting average. He ended up batting .300 with 25 home runs, 70 RBIs, and 22 stolen bases. Sosa was named to his first All-Star team in 1995. In 144 games, he batted .268 with 36 home runs and 119 RBIs. Sosa continued his success with the Cubs in 1996 as he batted .273 with 40 home runs and 100 RBIs. However, in 1994, Sosa batted just .251 with a .300 on-base percentage, and led the league in strikeouts with 174 despite hitting 36 home runs with 119 RBIs. After years as a respected power/speed threat with a rocket arm in right field, he emerged during the 1998 season as one of baseball's greatest. It was in this season that both Sosa and Mark McGwire were involved in the "home run record chase", when both players' prowess for hitting home runs drew national attention as they attempted to pass Roger Maris' single season home run mark of 61 home runs. In the early months of the year, Sosa trailed McGwire significantly, being as many as 16 homers behind at one point in May. But as the chase progressed, Sosa eventually tied McGwire with 46 home runs on August 10. However, McGwire pulled away slightly and reached 62 home runs to break the record first on September 8. Sosa tied McGwire once again at 62