Complex sentence: Eight days later Watford travelled to fourth-placed West Bromwich Albion, where they were defeated 5--0, their heaviest defeat of the season and biggest ever defeat against West Brom.
Split into simpler sentences: Eight days later Watford travelled to fourth-placed West Bromwich Albion. Watford were defeated 5--0--their heaviest defeat of the season and biggest ever defeat against West Brom.