Santiago has become one of the most massive bodybuilders of Allamerianguys: not only a big upper body but also big legs. In several videos on AAG he demonstrates his intensive leg training. On these shots here you see him working out at the leg extension machine. Santiago likes to do a "drop set", which means that he begins with a heavy weight and then drops down to about half of that to concentrate on the curls and the extension.
More of Santiago's leg training soon here on WI.
You find many high quality photos and videos with Santiago on Allamericanguys.