You want the dream setup for football (soccer), here you go:
4*1DX (2 on you, 2 behind the goals)
2*14L
1*400 2.8 IS II (because you f'ing save 1.5kg compared to the old one) 300 is too short on FF (my opinion as a football photographer)
1*70-200 2.8 IS II (it's just way better than the version 1)
1*24-70 L II
1*16-35
1*8-15L
Gitzo 5540 or equivalent monopod
pocket wizards
1-2 flashes (always take flashes, just in case)
big ass peli-case
walkstool (camping seat, extremely important! must have)
some words of advice:
- football/soccer is not american football. you can remain stationary for a full halftime (minus the few runs you do in case of penalty kicks, goal emotions, corners etc.).
- with a 400, position yourself about 2/3 between the goal and the cornerflag (direction corner flag)
- use the 400 as your main lens, switch to 70-200 if the players pass the 16 meter mark (2 bodies on you, else you miss it)
- maybe lay down your 400 and 70-200, switch to a 8-15 and 16-35 move around to get a filled stadium short from one of the corners (maybe even a bit up, like half the rows or more) you want to show a massive, filled stadium. you can't go wrong with 1 or 2 fisheye shots, just don't overdo.
- when your up there doing wide shots, be sure to keep an eye on the field...if a goal happens, just use the pocket wizard to capture it

- take a few images of the fans
- take a shot of the coaches (can also do before the kickoff when you're at the sideline to get the groupshot of the team)
- take a groupshot of the team after they walk in before the kickoff (they normally stand in a line or pose in 2-3 rows)
- all action sequences need the ball in the frame, emotion pics should be close-ups, keep the 4-eye rule in as many action shots as you can, position yourself to where the background is not filled with empty seats, try to keep an eye on ads in the background (sometimes you can get awesome shots with them, i.e: 1 player gets fouled and you catch him falling down, the ad behind him is for painkillers, that's just an outright awesome shot there!)
for any more questions, just reply here.
regards from europe
PS: I myself have almost completly switched from football/soccer to other photography areas, hence my trusty 1D4, 24-70 and 400 2.8 have been sold. I still do the occasional football/soccer match (just international games) but I can still get enough shots with the 5D3 and the 70-200. You can tell my new preference and area if you go past my bodies and lenses in the signature.