Complex sentence: Van Nistelrooy started the 2003--04 season by scoring twice in his first two league matches, meaning he had scored in ten consecutive league games, a Premier League record, which stood until 2015 when Jamie Vardy scored in eleven consecutive matches.
Split into simpler sentences: Van Nistelrooy started the 2003--04 season by scoring twice in his first two league matches. This meant he had scored in ten consecutive league games, a then Premier League record, which stood until 2015 when Jamie Vardy scored in eleven consecutive matches.