NASTIA LIUKIN

"Regardless of what she decides to do, if she decides to go on to try and make the Paris Olympics ... she really is setting that bar and really just being the best role model out there," Nastia Liukin said of Simone Biles.

Before there was Simone Biles, there was Nastia Liukin.

For anyone who’s waiting until the Games air in primetime Thursday night: Caution ahead! This article contains spoilers.

"I know I brush it off and make it seem like pressure doesn't affect me but damn sometimes it's hard," Biles said after making several errors during qualifiers.

Liukin and Marchenkos students have won 35 world and Olympic medals. The pair has contributed to the success of the U.S. Olympic Team since 2002 and has produced back-to-back Olympic All-Around champions: Carly Patterson, who was the all-around gymnastics champion at the 2004 Summer Olympics in Athens, and Nastia Liukin, the all-around champion at the 2008 Summer Olympics in Beijing.