Complex sentence: Booth had a low key season in 1955--56, struggling to find a regular position in the New South Wales team; as there were no international matches during the summer, the Test players were available for the whole campaign.
Split into simpler sentences: Booth had a low key season in 1955--56, struggling to find a regular position in the New South Wales team. As there were no international matches during the summer, the Test players were available for the whole campaign.