In 1929, uniform numbers appeared on the back of baseball jerseys for the first time, thanks to the Indians and the Yankees.  By 1937, numbers finally appeared across all uniforms, both home and away, across both major leagues.  Since that time, 81 distinct numbers have been worn by members of the White Sox, while the Cubs boast 76.

Today, we continue our look at those players, picking our favorite, if not the best, player to wear each uniform number for both Chicago teams with #63.  8 players have donned #63 while playing in Chicago, 5 for the White Sox and 3 for the Cubs.

Matt Foster made his major league debut for the White Sox in 2020, becoming the fifth player to wear #63 while going 6-1 with a 2.20 ERA en route to helping the White Sox earn their first playoff berth since 2008.

On the north side of town, Kevin Gregg wore #63 during both of his stints with the Cubs, in 2009 and again in 2013.  He notched 56 saves despite a 4.13 ERA.