a. While playing doubles make sure not to hit your racket with your partner’s racket as graphite/carbon rackets tend to break in case of a clash and steel/ aluminum frames tend to bend in this situation.
a. Never put any heavy or pointed object on the racket. Any unwanted pressure on the racket can change the shape, flexibility, and strength of the racket.
a. Graphite and high modulus rackets if kept in sunlight or high temperatures will start melting and thus changing the shape and drastically reduces the strength and durability of the racket.
a. Higher string tension than recommended or high string tensions in old/damaged rackets will make the racket frame to bend or break during the course of your game. Hence make sure that the string tension is in the recommended guideline.