In the 2014 season, Griner's stats would improve, as she averaged 15. 6 points per game, 8. 0 rebounds per game and 3. 7 blocks per game. On June 29, 2014, Griner had set a WNBA record with 11 blocks in a regular season game win against the Tulsa Shock, along with 21 points and 8 rebounds. On August 24, 2014, Griner became the first WNBA player to dunk in a playoff game when she helped the Mercury defeat the Los Angeles Sparks, 93–68, at Staples Center. The 2014 season would be a historic season for the Mercury with the combination of Brittney Griner, Diana Taurasi and Candice Dupree as the dominant Big 3 to carry the team plus the arrival of new head coach Sandy Brondello, the Mercury finished 29–5, setting the WNBA record for most wins in a regular season. They made it all the way to the WNBA finals and swept the Chicago Sky 3 games to 0, to capture the Mercury's third championship in franchise history. During the series, Griner set WNBA finals records in game 1 for most blocks in a game (8) and most blocks in a quarter (5).