Philadelphia Union defeated the University of North Carolina Tar Heels, 0-5, in their first ever pre-season match on February 13, 2010, in Greensboro, N.C.

On February 28, during a pre-season tour of Mexico, The Union played to a 2-2 draw against the Chivas de Guadalajara reserves. Two days later, The Union defeated Mexican second-division side Universidad de Guadalajara 0-1.

On March 14, the Union played their first friendly against an MLS opponent, losing 2-0 to FC Dallas in a match played in Tampa, Florida. Five days later, in their final pre-season friendly, The Union played the Tampa Bay Rowdies (a fellow first-year expansion club, albeit in the second-division NASL) and lost 1-0.

Philadelphia began their first Major League Soccer regular season on the road with a nationally-televised match against Seattle Sounders FC on March 25, 2010. Union central defender Danny Califf received the first booking in Union history, by receiving a Yellow Card 33 seconds into the match.

Rookie Toni Ståhl (playing out of position at the other center back) was the first Union player to be sent off, after being booked in the 22nd and 37th minutes.

Two first half goals from Brad Evans and Fredy Montero were too much for the ten-man Union, as they went down to defeat 2-0 in their first match, in front of a crowd of over 36,000 rabid Seattle fans—and about 100 hearty Sons of Ben who made the trip.

After the game, the Union released Costa Rican defender David Myrie, and sent Ståhl out on loan to their USL-2 affiliate, Harrisburg.

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Wikipedia