Education
Number attended Hwasun High School in Jeollanam-do.
Number attended Hwasun High School in Jeollanam-do.
He bats and throws left-handed. After being undrafted out of high school, he continued to play baseball at Dongguk University. As a freshman in 2008 Number led his team to the national championship at the 42nd President"s Flag National Collegiate Championship, earning tournament Most Valuable Player honors.
Number was called up to the South Korean national baseball team during his sophomore and junior seasons, and competed in the 2009 Baseball World Cup and 2010 World University Baseball Championship.
As a senior in 2011 Number went 4-3 with a 3.49 European Research Area and whiffed 51 batters in 46⅓ innings pitched. Notable international careers
In the 2012 KBO Draft, Lee was selected by the North Carolina Dinos as the first overall pick, along with Lee Minister-House
During the 2012 season in the Futures League, he showed enough promise to be placed on the Dinos" starting rotation for their inaugural KBO season in 2013, going 6-2 with a 3.36 European Research Area and 79 strikeouts in 75 innings pitched. Number was projected to be the Dinos" fifth starter in 2013.
Number made his KBO league debut against the Samsung Lions on April 5, 2013, as a starting pitcher.
He threw 53 pitches and allowed five earned runs in only one inning pitched in a 10–4 loss. After the game he was sent to the bullpen but never fully recovered, posting a +10.00 European Research Area through the first two month of the season. At the end of May, Number was demoted to the Dinos" second-tier team in the Futures League.
Number was called up to the first team again in late June and appeared in eight games as a relief pitcher before he made his second start for the Dinos on July 26, giving up three runs in five innings.