There's a rumor that the MLS wants to put an expansion team in Philadelphia by 2009, and this inspired me to make this:
As you can see, the main theme I was going for is "NASL-style". The retro-styled lettering, a number in front of the jersey, etc. There's a bit of a story behind the primary logo: Originally I was going to name the team P-09, the city's initial and the year the team will start playing, so I made the P,0,and 9 look like a goalie's hands catching a ball. There are some clubs in Oceania with names like that, and Houston almost went this direction too (sort of). The words "Philadelphia Professional Soccer" were always on the logo, but I figured that that name could be shortened to "Pros", which I thought was a cool-sounding, underused name. Let me know what you think and I'll see if I can improve on it.