Tim Sweeney was drafted out of high school in 1985 by the Flames and attended Boston College for four years. He was named to the Eastern first all-star team in 1989 as well as the NCAA’s East second all-American team.
After a season in the IHL, where Sweeney was named to the league’s second all-star team and received the Ken McKenzie Trophy as the outstanding American player in his first season in the IHL, he made his NHL debut with the Flames in 1990-91, splitting the year iwith a stint in the IHL. The next season saw Sweeney play for the U.S. national team and become a member of the 1992 Olympic squad in Albertville, France. After another brief stint with the Flames, Sweeney signed with the Bruins as a free agent in 1992.
Sweeney spent his first year with Boston playing the majority of the season with their AHL team in Providence. He was claimed by the Mighty Ducks in the Expansion Draft of 1993 and remained a Duck for two seasons before heading back to Boston when he signed as a free agent in 1995. Two more seasons passed when he played in both the NHL and AHL. He headed to the Rangers in 1997 after becoming a free agent once again.
After only two games with the Providence Bruins in 1998-99 Sweeney called it a career.