Last December I had to fortune of watching Spurs vs Man U at White Hart Lane. Had a DSLR with me, but with short lens. I just wanted to capture the atmosphere, but one of the stewards approached me and (quite nicely) told me exactly the same thing: Your camera looks very "professional", and the players on the pitch generally don't like to have their picture taken. I guess so lah. I mean, if someone takes picture of C.Ronaldo, Park Ji Sung, Robbie Keane, Aaron Lennon, etc and sell for $1000 each, it's not very fair, right?
So I guess Sengkang Punggol, Gombak United or FAS were just trying to prevent the same thing happening to their players?