Fowles, who plays center, received 21 of the 39 votes from the WNBA media and out-polled five time winner Tamika Catchings of the Indiana Fever.
Fowles was the league's leading rebounder with 369 and a per-game average of 11.5 boards. She was second in blocked shots with 2.44 per game.
Her first game of the season included a double-double of 24 points and 22 rebounds.
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