2018 (Philadelphia): Rosenberry made 32 regular-season appearances (31 starts) at rightback in 2018, registering one goal and three assists. He notched his first helper of the campaign on Ilsinho's opening goal vs. D.C. United (April 28) and scored his first goal of the year with a shot from distance as part of a 4-1 win over Real Salt Lake (May 19). He recorded his first multi-assist match with two helpers in the postseason-clinching win over Minnesota (October 6) and was named to the MLS Team of the Week (Week 32) for his efforts. He started the club's Knockout Round match at NYCFC (October 31). In the Lamar Hunt U.S. Open Cup, he made five appearances (five starts) at rightback.
2017 (Philadelphia/Bethlehem): Rosenberry made 14 appearances (11 starts) at rightback in his second professional campaign, registering one assist. He made two appearances (two starts) in the 2017 Lamar Hunt U.S. Open Cup. For Bethlehem Steel FC, Rosenberry made one regular-season appearance (one start) at rightback.
2016 (Philadelphia): Rosenberry joined the Union as the third overall pick in the 2016 MLS SuperDraft and immediately put together a strong rookie season, playing every minute of every regular-season match, the only field player to achieve that in 2016 and the first rookie to do it as part of a 34-match regular season. He was runner-up in the MLS Rookie of the Year voting and won the MLS Individual Fair Play Award after not receiving a single booking throughout the campaign. He scored two goals throughout his rookie year, including the game-winner against Columbus on August 25, 2016, and started the Union’s postseason contest at Toronto FC.
Rosenberry was called up to the United States National Team for its 2017 January camp under Bruce Arena, but the defender did not make any match appearances.
In 2015, at Georgetown, Rosenberry was named first Team NSCAA All-Great Lakes Region and second Team All-Big East Conference, while in 2014 he was named to the NSCAA Third Team All-Great Lakes Region and second Team All-Big East Conference. Over his four years with the Hoyas, he made 90 appearances and scored four times. He also appeared with PDL side Reading United AC in 2014 and 2015.
Philadelphia Union selected defender Keegan Rosenberry in the First Round (third overall) in the 2016 MLS SuperDraft on January 14, 2016.
Name: Keegan Rosenberry
Born: Harrisburg, PA
Hometown: Ronks, PA
Citizenship: United States
Acquired: Selected by the Philadelphia Union in the First Round (third overall) in the 2016 MLS SuperDraft on January 14, 2016