A title-winning team is a sum of all its parts. But some of those parts are more important than others.
For Arsenal, William Saliba fits squarely into that category.
It was his back injury, suffered in March last season in the Europa League last-16 defeat by Sporting Lisbon, which precipitated the Gunners’ Premier League title demise. Saliba had started every league match up to that point.
The centre back’s involvement in the last five league games this season will be crucial if table-topping Arsenal are to win a first league title in 20 years.