Darell Hernaiz delivered a dramatic walk-off home run in the 10th inning, lifting Puerto Rico to a 4-3 victory over Panama in World Baseball Classic action at Hiram Bithorn Stadium. The 24-year-old infield prospect for the Oakland Athletics, who hit .231 with two home runs last MLB season, crushed a 374-foot blast to left field that sent the San Juan crowd into a frenzy.

Hernaiz, a native of San Juan, also contributed a single earlier in the game and now boasts a .333 batting average in the tournament. His heroics came off Panamanian reliever Severino Gonzalez and capped a tense pitchers' duel. Jose Espada earned the win in relief, throwing two scoreless innings with one strikeout after Eduardo Rivera started for the hosts.

Panama, which fell to 0-2 in Pool A, received a strong start from Ariel Jurado, who tossed five scoreless innings with four strikeouts. The loss came on a day featuring two walk-off wins in the WBC, as Ozzie Albies' ninth-inning three-run homer earlier lifted the Netherlands over Nicaragua in Miami.