I started playing rugby 3 years ago at around 235 15% BF. I had been a powerlifter and had some decent lifts. I could not run at that weight and severly lacked aerobic conditioning. I could not play effectively whatsover, even though I was the strongest guy out there. 3 years later, I am 210 8-9% BF and can run like a deer and hit like a mack truck. Rugby games are 80 minutes of non stop running, tackling, pushing, rucking- so you must have excellent aerobic and anarobic conditioning. My lifts have gone down, but I look alot better- and the important lifts (for myself) ie. powerclean, have gone up. I presently train not to look good, or be big, but to put bonecrushing hits on dudes on the rugby pitch. i find this much more satisfying then hitting gym pr's.