Complex sentence: Hirst played only intermittently for Yorkshire over the next couple of seasons, but continued to develop as a cricketer, signing as a professional for Elland Cricket Club for 1890 before joining Mirfield in 1891.
Split into simpler sentences: Hirst played only intermittently for Yorkshire over the next couple of seasons. Meanwhile, he continued to develop as a cricketer, signing as a professional for Elland Cricket Club for 1890 before joining Mirfield in 1891.