I know there are a lot of strength focused athletes at PG. Here is a great article on how to implement conditioning into you routine without taking away from your strength gains. If you have a friend that trains strength primarily and is looking to add a little conditioning into the mix this is a great article to refer them to.
try to finish the last set of 3, 5-10lbs heavier than the last time
x10 push ups w/ release
x10 knee to elbows