Key patterns in player strategy on grass courts include a strong emphasis on serve-and-volley tactics due to the fast-paced nature of the surface, which favors quick points and aggressive play. Players often prioritize a powerful serve to set up easy volleys and reduce rally lengths, while also utilizing slice shots to disrupt opponents' rhythm. Additionally, effective net play and accuracy in placement become critical, as grass courts can produce unpredictable bounces, making it essential for players to adapt quickly and capitalize on their opponent's weaknesses.