In October 2001, during the ALDS, Dye broke his leg when he fouled a ball off of his left knee. On January 16, 2002, Dye signed a three-year, $32 million extension with the Athletics. In 2002, Dye hit .252 with 24 home runs and 86 RBI in 131 games. He struggled with injury in 2003, enduring two stints on the disabled list with knee and shoulder injuries. In 65 games that season, Dye hit .172 with four home runs and 20 RBI. He stayed healthy in 2004, batting .265 with 23 home runs and 80 RBI in 137 games. After the season, the Athletics non-tendered Dye, making him a free agent. Chicago White Sox On December 9, 2004, Dye was signed by the Chicago White Sox to a two-year, $10.15 million free-agent contract with an option for 2007. He played 145 games in 2005, the most since his injury, including an appearance at first base and shortstop. He batted .274 with 31 home runs and 86 RBI, slugged .512 and stole 11 bases in regular season play, and was named World Series MVP, batting .438 with one home run and 3 RBI. His RBI single off Houston Astros closer Brad Lidge provided the deciding run in Chicago's 1–0 Game 4 victory, clinching the Series sweep. 2006 proved to be Dye's best offensive season; he finished second in the league with 44 home runs, third in slugging at .622, fifth in runs batted in with 120, batted .315, and placed fifth in AL Most Valuable Player voting. On Mother's Day, May 14, Dye was one of more than 50 hitters who used a pink bat to benefit the Breast Cancer Foundation. Dye was selected to the American League All-Star Team for the second time in his career after a scorching first half in which he batted .318, struck 25 home runs and slugged .646. Dye was also awarded a Silver Slugger for his offensive performance. On October 30, 2006, the White Sox exercised their $6.75 million option for Dye's 2007 season. Dye, along with many other Chicago hitters, struggled in the first half of 2007, including a cold June in which he batted just .203 with one home run. He turned his game around in the second half, batting .298 and knocking out 20 doubles and 16 home runs. Dye finished the season with a batting line of .254/.317/.486, and hit