My partner hit a short cross-court shot. Our opponent charged in and, while hitting a winner, his momentum carried him well onto our side of the court but outside the sideline. Can he do that?—Rick Winkel, Denver, CO

He sure can. Rule 24, Case 4, is specifcally on point: "Does a player lose the point if an imaginary line in the extension of the net is crossed ... after hitting the ball? The player does not lose the point ... provided the player does not touch the opponent's court."

Except where noted, answers are based on the ITF Rules of Tennis and USTA's The Code.

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