Providing the lighting wasn't going to change much *floodlights, overcase sky, sunshine) wouldn't you just take a few readings off the pitch and average them out and shoot that?
I would use matrix if I was shooting in Av mode, however 90% of the time I take a reading and then shoot manual adjusting as needed. Even with matrix you will get pretty big swings in exposure if covering teams with either dark or light kits which makes PP a pain.
But the OP is asking which metering mode to shoot in so one can only assume he is shooting AV or possibly TV
If i shoot using Matrix it nails the exposure 99.9% of the time for me shooting Rugby, Cricket and the odd footy match, no big swings here for me unless theres a massive amount of sky like 80% of the frame but its only been a problem once in about 200,000 exposures.
Exactly, which I why I said to shoot matrix if using Av (Tv would have been a rare choice).
I appreciate your skill Gary as you really produce some stunning shots, but would have to disagree with the 99.9% nailed in matrix mode unless all kits are not at the extreme ends of the scale (almost white or black) and framed tight. If shooting middle colours then I can accept that it would be close a lot of the time.