German World Cup winner Toni Kroos has spoken out on the tiredness debate, and believes footballers are asked to play at too high a level too frequently.
Toni Kroos told Spanish newspaper Marca: "I think the number of games is too high, especially for those players who are also internationals.
"It is no accident that in the last two months there have been so many players injured, and I'm not just talking about muscular problems.
"In the season, teams are playing every three days. It is a big workload involving some long journeys too. In football we could do with more time to rest, like they have in the NBA".
This season alone already, Kroos has played in 12 games for club and country. In 2013/14 and including the World Cup, he played in 63 matches.
His argument is a sound one, and there is good reason to rest young players like Sterling often to prevent burnout, as Brendan Rodgers did at Liverpool during his first season at the club.
The main problem with the Sterling controversy, is borne out of Roy Hodgson's ham-fisted handling of his comments to the media.