UNCASVILLE, Conn. -- Tiffany Mitchell scored 13 of her career-high 21 points in the final 5:39 to help the Indiana Fever hold off the Connecticut Sun 88-77 on Sunday.

The Fever (4-4), ranked No. 6 in in the AP WNBA power poll, led by 20 with 3:51 left in the third quarter. Connecticut rallied back within 73-67 as Rachel Banham scored nine of the Sun's next 20 points.

Mitchell, a rookie, then scored 13 of Indiana's final 15 points and the Fever pulled away for good.

Marissa Coleman, Devereaux Peters and Tamika Catchings had 12 points each and Shenise Johnson scored 11. Mitchell has scored in double digits in all eight games this season.

Alyssa Thomas led the last-ranked Sun (1-7) with 20 points. Kelsey Bone added 13 points, Banham scored 12 and Chiney Ogwumike 10. Connecticut has lost its last six and is off to the worst start in franchise history.