FC Dallas announced Wednesday that midfielder Mauro Diaz will undergo right knee surgery on Tuesday, and is expected to miss 6-10 weeks.
Diaz was off to a hot start in 2013, scoring three goals and adding three assists in eight games. The 23-year-old Argentine earned MLS Player of the Month honors for March.
FC Dallas started the season 5-1-1 with Diaz leading the way, but has since lost two games in a row. Diaz joined the club last summer as a Young Designated Player.