CHICAGO – The Chicago White Sox have signed first baseman Andrew Vaughn, their first-round pick (third overall) in the 2019 First-Year Player Draft, second-round selection right-handed pitcher Matthew Thompson and third-round pick right-hander Andrew Dalquist to minor-league contracts.

 Vaughn, 21, batted .381 (67-176) with 14 doubles, 15 home runs, 50 RBI, 49 runs scored, 59 walks, a .544 on-base percentage, .716 slugging percentage and 1.260 OPS in 52 games for the University of California in 2019. Vaughn, who signed with a $7,221,200-million signing bonus, finished the regular season ranked among Division I leaders in on-base percentage (3rd, .549), walks (T8th, 58) and slugging percentage (14th, .728).

 The 6-foot, 215-pound Vaughn, who bats right-handed, was a finalist for the USA Baseball Golden Spikes Award this season and won the award in 2018, becoming the 17th athlete since the award started in 1978 to be named a finalist twice and first since Vanderbilt pitcher David Price in 2006-07. He was named to the Pac-12 All-Conference team and a finalist for the Dick Howser Award this season.

 Vaughn, a Santa Rosa, Calif. native, joins infielder Nick Madrigal (2018, fourth overall), third baseman Jake Burger (2017, 11th), catcher Zack Collins (2016, 10th), right-handed pitchers Zack Burdi (2016, 26th) and Carson Fulmer (2015, eighth), left-hander Carlos Rodón (2014, third) and infielder Tim Anderson (2013, 17th) as the Sox most recent first-round selections.

 Vaughn was recommended by White Sox scout Adam Virchis.

 Thompson, 18, went 13-0 with a 0.87 ERA (9 ER/72.2 IP), two complete games, one shutout, 124 strikeouts and a .095 (23-241) opponents average in 15 appearances (six starts) at Cypress (Texas) Ranch High School this season. He was recommended by Sox scout Chris Walker.

 Dalquist, 18, posted a 9-0 record with a 1.98 ERA (15 ER/67.0 IP) and 103 strikeouts over 20 appearances as a senior at Redondo Union High School in Redondo Beach, Calif. He was recommended by White Sox scout Mike Baker.

 The Sox also agreed to terms with right-handed pitchers Caleb Freeman (15th-round pick) and Hansen Butler (25th) and left-hander Samuel Peralta (18th).

 Chicago has signed 35 of its 40 picks from the 2019 First-Year Player Draft.