dead rubber
noun
- a sports match that holds no significance in terms of affecting the outcome or standings of a tournament
Wiktionary
noun
- In a series of sporting fixtures, a match of which the result is irrelevant, the winner of the series, or the outcome of the league, having already been determined by earlier results.
“It also means Tuchel can use qualifiers that are now effectively dead rubbers against Serbia at Wembley and away to Albania to continuing shaping his squad in readiness for the World Cup.”