Pakistan's players huddle before their men's Group A hockey match against Spain. -Photo by Reuters

Spain's national hockey team's forward Pablo Amat (L) is tackled by Pakistan's hockey team's midfielder Waseem Ahmad. -Photo by AFP

Spectators look on as Spain's forward Santiago Freixa gestures in pain after getting injured. -Photo by AFP

Pakistan's Rehan Butt is congratulated by teammates after scoring a goal. -Photo by AFP

Pakistan's forward Rehan Butt (R) celebrates after scoring a goal as teammate Muhammad Waqas runs to congratulate him. -Photo by AFP

Pakistan's Rehan Butt celebrates his goal. -Photo by Reuters

Pakistan's Waseem Ahmad, second left, and Spain's David Alegre vie for the ball. -Photo by AP

Pakistani and Spanish field hockey players argue over a decision. -Photo by AP

Spain's coach Daniel Martin Santos reacts during their men's Group A hockey match against Pakistan. -Photo by Reuters

Spain's goalkeeper Francisco Cortes makes a save from a penalty corner, watched by teammates Miguel Delas (L) and Juan Fernandez. -Photo by Reuters

Spectators watch the men's Group A hockey match between Spain and Pakistan. -Photo by Reuters