The NFL is installing a hybrid field for its two games in Frankfurt next month after players complained about slipping on the natural grass in Munich. The hybrid surface was installed at Deutsche Bank Park ahead of the games between the Kansas City Chiefs and Miami Dolphins, and the New England Patriots and Indianapolis Colts. Hybrid surfaces, which are widely used in European soccer stadiums, consist of 90% or more natural grass with synthetic fibers woven into them for reinforcement. The NFL is constantly re-evaluating playing surfaces to ensure player safety.

• The NFL is installing a hybrid field for its games in Frankfurt next month after players complained about the natural grass surface in Munich.
• Hybrid surfaces consist of 90% or more natural grass with synthetic fibers woven into them for reinforcement.
• The NFL is constantly re-evaluating playing surfaces to ensure player safety.