Complex sentence: De Valera went on to play for the Munster rugby team around 1905 in the fullback position and remained a lifelong devotee of rugby, attending numerous international matches up to and towards the end of his life despite near blindness.
Split into simpler sentences: De Valera went on to play for the Munster rugby team around 1905 in the fullback position. He remained a lifelong devotee of rugby, attending numerous international matches up to and towards the end of his life despite near blindness.