At California, he left leading the school in all-time points with 288 points, and in field goal accuracy, hitting 56 out of 80 attempts, hitting 70% of his field goals for his career. Brien is still the all-time leading scorer for the historic football program. Cal was ranked in the AP top 25 in each of Brien's seasons with the program, winning the Citrus Bowl in 1991 and the Alamo Bowl in 1993. Off the field, he was a member of the Sigma Alpha Epsilon fraternity. He graduated with a B.A. degree in Political Economy of Industrial Societies in 1994.
Professional career
Brien was drafted in the 3rd round in the 1994 NFL draft. He was the only kicker to be taken during the draft and moved across the bay to join the San Francisco 49ers. Brien struggled during his rookie year, converting 15 of 20 field goals and 60 of 62 PATs for the 49ers. The 49ers, led by Steve Young, went on to win Super Bowl XXIX over the San Diego Chargers by a score of 49–26, a game in which Brien missed his only field goal attempt, a 47-yard try before halftime. Brien nonetheless set the record for most PATs during a single postseason with 17 en route to earning a Super Bowl ringthat season. Brien also had a fumble recovery during the. The following year, Brien made only 58% of his field goals for San Francisco, and was cut after missing a potential game-winning field goal against the Indianapolis Colts. He signed a few weeks later with the New Orleans Saints. Brien went on to play a total of 12 seasons in the NFL for 7 different organizations including 6 seasons with the Saints. He was elected a team captain as well as the NFLPA player rep for the Saints. Over the course of his career, Brien was regarded as one of the most reliable kickers in the league. One huge exception to this was during the in Pittsburgh against the Steelers. Brien missed two 4th-quarter field goals from 47 and 43 yards which would have won the game for the New York Jets. At the time of his retirement, he was one of the 10 most accurate field goal kickers of all time, and currently ranks 54th. During his career, Brien converted 80.2% of field goals and 98% of PATs. Brien accounted for 915 points over his 12-year career and has a career long make from 56 yards.
After retirement
After the conclusion of his NFL career, Brien co-founded a real estate investment firm, Waypoint Real Estate Group.