51.   Dan Kiesel, the German physio with the Pakistan team, said the bowler did strain a back muscle against Holland but said the problem was not serious.

52.   Worryingly for Wales, goalkicking stand-off Stephen Jones did not train Wednesday after suffering a back muscle spasm.

53.   Pakistani captain Wasim Akram opted out of the key day-night game with a strained back muscle.

54.   Sampras had been forced to pull out of the tie on Thursday because of a back muscle problem.

55.   Sampras had been forced to pull out of his singles on Thursday because of a back muscle problem.

56.   She won the second and final set of her match with Rubin despite a painful back muscle injury.

57.   The Belgian played the second and final set of that match with a painful back muscle injury.

58.   The main shock of the morning came when Boris Becker, the tenth seed, was forced to withdraw after straining a back muscle while training.