WASHINGTON — Jewell Loyd scored 14 points, including the go-ahead jumper with 8.6 seconds left, and the defending champion Seattle Storm overcame a 13-point fourth-quarter deficit to beat the Washington Mystics 74-71 on Friday night in a rematch of last season’s WNBA Finals.

Loyd made a fast-break layup and Natasha Howard hit a running floater in the lane to make it 71-all it with 49.3 seconds remaining. On the ensuing Mystics possession, Loyd tipped a cross-court pass that, after video review, was ruled to have deflected off Washington’s LaToya Sanders before going out of bounds. Alysha Clark’s errant inbound pass was nearly stolen but Loyd controlled the loose ball and called a timeout, setting up her 17-footer that give the Storm (5-3) a 73-71 lead, their first since early in the second quarter, with 8.6 seconds left.

The Mystics (4-3) called a timeout, advancing the ball to midcourt, and Elena Delle Donne, double-teamed on the inbound pass, tipped it to Aerial Powers, who missed a potential tying runner in the lane. Delle Donne led Washington with 19 points.

Howard had 19 points and 11 rebounds for Seattle. Mercedes Russell added 15 points and 11 rebounds — both career highs.