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INDIANAPOLIS -- Caitlin Clark and Aliyah Boston are finally getting in sync and, naturally, Indiana looks like it finally has a winning combination.

The rookie guard overcame yet another physically demanding challenge from Chicago by finishing with 23 points, nine assists and eight rebounds while Boston produced her third consecutive double-double to lead the Fever to a 91-83 victory over the Sky on Sunday.

For Clark, it was her best day as a pro. She made 7 of 11 shots with three 3-pointers and celebrated the first back-to-back wins of her WNBA career.

"I think we're moving the ball and I think once we gave it up, people were getting it back in the half court," Clark said after committing a more manageable five turnovers in nearly 37 minutes. "I thought we were really good out of the ball-screen action, I thought we made some really good reads."

Boston, last year's WNBA Rookie of the Year, had 19 points and 14 rebounds while Kelsey Mitchell added 17 points and NaLyssa Smith had 15. The balanced scoring attack was a welcome change for the Fever (5-10), who now lead the Sky 2-0 in the season series.

But just like the first contest two weeks ago, Clark took a hard shot that knocked her to the ground, this time when college rival Angel Reese's right elbow hit Clark in the head.

The difference this time, unlike the Chennedy Carter play, was that the refs upgraded the foul to a flagrant 1 following a replay review, giving Clark two free throws and Indiana the next possession.

"The right call was made in that moment," Fever coach Christie Sides said. "Just make the right call in those moments, and we can move forward. But when we don't make the right call in those moments, that's when there's a problem, and they made the right call tonight."

Marina Mabrey scored 22 points to lead the Sky (4-9), who have lost four straight.

Carter, who hit the unsuspecting Clark with a hard foul on an inbound pass two weeks ago, had 18 points and four assists. League officials later upgraded Carter's foul to a flagrant 1.

Reese had 11 points, 13 rebounds and five assists while Kamilla Cardoso had 10 points and 10 rebounds Sunday.

Indiana built a 47-43 lead with a 12-6 run to close the first half. Marina Mabrey then scored eight points in a 12-4 spurt to open the second half to give the Sky a 55-51 lead.

The Fever charged back, taking a 58-57 lead on Clark's 3-pointer midway through the third, and never trailed again. They opened up a 68-64 lead before Chicago scored the final basket of the quarter.

Indiana sealed it with a sequence that included Clark's second 3 of the game, Boston's short jumper, Smith's layup and two free throws from Clark over the final 3:06.

"She took the shots that were hers and knocked them down. She distributed the basketball," Sides said, referring to Clark. "She takes so much attention and she's able to find those open looks for her teammates. I mean, all around she was just really good."