If you want to know how locked in Caitlin Clark is ahead of the Indiana Fever’s WNBA season opener against Angel Reese and the Chicago Sky on Saturday, just look at the reaction of the player guarding her in practice this week.

Clark was on fire in preseason, averaging 14.5 points, 6.0 rebounds and 6.0 assists in the two games she played while shooting a sizzling 7-for-14 from three-point range.

The Fever went a perfect 3-0 with wins over the Washington Mystics, Brazil national team and Atlanta Dream.

Ahead of the rivalry matchup in the regular season opener, Indiana posted practice footage of the returning WNBA All-Star that illustrated just how unguardable she is.

Indiana Fever guard Caitlin Clark (22).Dale Zanine-Imagn Images

Viral videos of Clark in practice contributed to her legendary status coming out of college at the University of Iowa. The NCAA’s all-time leading scorer recently told David Letterman that she once scored 22 points in two minutes playing against male practice players — and her words hardly did the video justice.

“We ended up winning and our boy practice players didn’t hear the end of it,” Clark said. “They still don’t. I love to bring it up.”

Now, those Iowa boys have company in Clark’s trash-talking Rolodex. She left one of the Fever practice players in shock at Wednesday’s practice with a fadeaway three that sparked a viral reaction.

As Clark strutted away confidently, all her defender could do was hold his hands up in disbelief.

Many fans on social media joined in pity for the hopeless practice player, with some likening his shrug to that of Hailey Van Lith — now on the Chicago Sky roster — when she had to defend Clark in college.

Whether or not Clark shows hits any circus shots against the Sky, history says it should be an entertaining game. During Clark and Reese’s rookie year, Indiana won the season series 3-1, but two of the four contests were decided by a single point.

The Fever and the Sky are scheduled to tip off at 3 p.m. ET on Saturday on ABC, following the conclusion of the Las Vegas Aces vs. New York Liberty game at 1 p.m. ET.