Costa started the defeat to the Netherlands and Arsenal legen Martin Keown, writing for the Daily Mail, has suggested that he could make way with Cesc Fabregas coming in as Vicente Del Bosque opts for a false number nine.
The theory is seemingly to pack the midfield and control possession before doing what Spain do best and grinding down the opposition, waiting for the smallest of openings to attack.
It would be harsh on Costa who had a superb season with Atletico Madrid and it’s a decision that Jose Mourinho is unlikely to make throughout next season if he completes a deal for the £32 million striker after the tournament in Brazil.
Costa is a brute of a striker. He’s physical imposing, strong and quicker than he looks, which makes him ideally suited to the Premier League but perhaps less so for the way Del Bosque likes his Spain side to dominate games.
How Costa will take being dropped mentally we won’t know until later should Del Bosque make that call, but he should be confident that Mourinho won’t drop him unless he gets injured or has a very long run of bad games.
The Blues did go into some games last season without a striker, such as the early season game at Manchester United.
However, that was seemingly to do with the strikers available to Mourinho last season.
He’d have to be brave to go into a game against Manchester United next season with a fit Costa available, leaving him on the bench and parking the bus instead of pushing on to try and get a result.
Costa looks like the sort of striker who thrives on confidence and knowing he has the backing of his manager.
Diego Simeone’s clear message for him last season was ‘you’re my main man in attack’ and that’s unlikely to change under Mourinho despite the potential exclusion from Del Bosque.