Twellman has been active since his retirement in promoting awareness of concussions and working in the media as a color commentator for ESPN/ABC until 2023 and for Apple TV since 2023.

[3] In the 2003 season, despite being beset by a number of injuries, Twellman finished tied with Carlos Ruiz of the L.A. Galaxy for top goalscorer of the league with 15.

Twellman was the target of transfer talk when Odd Grenland of Norway reportedly made a $1.2 million bid for him, which MLS rejected.

The Revolution also won the Eastern Conference title, with Twellman scoring a spectacular bicycle kick against the Chicago Fire to secure the Revs' spot in the 2007 MLS Cup.

[8] In January 2008, English Championship team Preston North End attempted to entice Major League Soccer and the New England Revolution to sell Twellman.

[10][1] Twellman suffered a neck injury and a serious concussion from a mid-air collision against Los Angeles Galaxy goalkeeper Steve Cronin on August 30, 2008.

He first gained professional attention after scoring four goals for the U-20 national team at the 1999 World Youth Championship while still playing with the University of Maryland.

In the game, he scored the ninth hat trick in U.S. national team history, but was ultimately left off the World Cup roster by coach Bruce Arena.

Twellman was selected by new U.S. coach Bob Bradley as a member of the U.S. squad for the 2007 CONCACAF Gold Cup, scoring in a group stage win over El Salvador.

Twellman gradually fell out of the national team pool in the following years after a series of concussions sidelined his club career.

[citation needed] New England Revolution United States Individual In 2004, Twellman received the inaugural Keough Award, which recognizes the outstanding male soccer player from the St. Louis area.