[UPDATE] Freddy Adu Has Ankle Strain, Did Not Travel To Kansas City

Already missing multiple players due to injuries, the Union will be even thinner in Kansas City tonight. Philadelphia Union attacking midfielder Freddy Adu is unavailable for the team's game against Sporting Kansas City, according to the player's Twitter account.

Adu tweeted the following, in reference to tonight's clash between the second and third place teams in the Eastern Conference:

Good luck to the union tonight against kansas city. Wish i could be there with them. #Doop

With Faryd Mondragon, Thorne Holder, Sheanon Williams and possibly Justin Mapp out, the Union were down to 23 available players, until Chase Harrison was signed to back up goalkeeper Zac MacMath. Philadelphia now has only 24 players to fill 18 game day roster spots.

The 22-year-old has played in six games, starting four, since joining the Union on August 12. An on-and-off again American international, Adu has scored a goal in 351 minutes with Philadelphia.