Complex sentence: Carr struggled with a knee injury (suffered against Liverpool in April 1973), before moving on to Wolverhampton Wanderers for £80,000 in March 1975 and made his debut against Chelsea in the same month, scoring once in a memorable 7--1 victory.
Split into simpler sentences: Carr struggled with a knee injury (suffered against Liverpool in April 1973), before leaving for £80,000 in March 1975. He joined Wolverhampton Wanderers debuting against Chelsea in the same month, scoring once in a memorable 7--1 victory.