Complex sentence: He was put on injured reserve before the season began, being placed on long-term injured reserve in mid-December to free up salary cap space, and doctors have advised Laperrière to retire, although he has not yet formally done so.
Split into simpler sentences: He was put on injured reserve before the season began, being placed on long-term injured reserve in mid-December to free up salary cap space. Doctors have advised Laperrière to retire, although he has not yet formally done so.