Complex sentence: However, his leg didn't heal propley and Manager Bob Dennison agreed to a transfer request and he joined local rivals Newcastle United and scored on his debut but the leg trouble returned and Day was again on his way to league newcomers Peterborough.
Split into simpler sentences: However, his leg didn't heal properly and manager Bob Dennison agreed to a transfer request and he joined local rivals Newcastle United and scored on his debut. The leg trouble returned, however, and Day was again on his way to league newcomers Peterborough.