• Set club record with 13 assists in 2011 and 2012.
• Named MLS Newcomer of the Year in 2011.
• Has played nearly 400 matches in South America and Europe and has been capped 10 times by Argentina.
• Coach Sigi Schmid: "Mauro brings a lot of experience to our team. He's a playmaking type of midfielder with good quickness and clever passing.

MLS Experience
2012: Matched club record from 2011 with 13 assists, ranking third in MLS and tied-first with five game-winning assists. Team went unbeaten (8-0-4) when he scored (three) or assist- ed (3). Recorded team record three assists in 6-2 win at CHV (8/25). Scored first goal of season in 1- 0 win vs. PHI (5/5). Set career-high with 27 games played, 25 starts and 2,031 minutes. Ten of his 13 assists resulted in goals by forwards Eddie Johnson (six) and Fredy Montero (four). Recorded three assists in Open Cup and Champions League play. Second on Sounders FC with 26 career assists.

2011: Named MLS Newcomer of the Year and set club record with 13 assists (five game-winning) in his first season, third among MLS playmakers. Added five goals, tied third on the team. Appeared in 26 MLS matches and helped make Seattle’s offense the most potent attack in the league. The team lost just three times with Rosales in the starting XI, going 13-3-6, and team went 10-1-2 when he scored or assisted. Named MLS Player of the Week for his performance against Colorado in week 18 when he recorded an assist and scored the late game-winner. He was named to the MLSsoccer.com Team of the Week a team-high seven times. Recorded assists in his first two MLS starts and scored first goal vs. VAN (6/11). He either scored (two) or assisted (six) in five consecutive matches from August 20 to October 15, despite missing much of the final month of the season due to injury.

Other Professional Experience
2007-10: Played past four years for Buenos Aires giants River Plate. Made 64 appearances, scoring four goals. Won the 2008 Argentine Clausura with River Plate. Scored 39 goals in 234 league matches for Newell’s Old Boys, Ajax and River Plate.

1999-04: Began career with Newell’s Old Boys, making over 100 appearances with 30 goals.

International Experience
Capped 10 times (one goal) by Argentina and was a member of the gold medal winning team at the 2004 Olympic Games, the 2001 FIFA U-20 World Cup and the 2004 Copa America rinners-up.