Hi All,
I am looking for some advice on shooting indoor 5-a-side football. I use a Canon EOS 400D with a 28-90mm (from my old 35mm EOS) and a Speedlite 550EX flash to shoot this:

Exposure Time: 1/200 sec
FNumber: f 16
Focal length: 54 mm
ISO: 1600
There is a bit of noise (due to the high ISO), I am looking for any tips to improve my shots. The flash was strugling to recharge as the batteries were not new!