Complex sentence: The following two summers were all against fast bowlers, and Richardson naturally suffered, though he remained a strenuous worker, and when helped by the pitch (as at Sheffield in 1903) he could still show glimpses of the great mid- 1890s bowler.
Split into simpler sentences: The following two summers were all against fast bowlers, and Richardson naturally suffered. He still remained a strenuous worker, and when helped by the pitch (as at Sheffield in 1903) Richardson could still show glimpses of the great mid- 1890s bowler.