Diego Costa
Diego Costa has scored nine Premier League goals this season. Getty Images

Chelsea star Diego Costa has reportedly joined the Spanish national with some niggles in in his groin. However, Marca claims that the striker is set to remain with Julen Lopetegui's squad ahead of the the forthcoming matches with Macedonia and England after medical test ruled out a serious injury.

Costa had a number of muscle issues during his first two campaigns at Stamford Bridge. However, he has looked to be shaper than ever since the arrival of Antonio Conte to the club.

The Spanish striker has started in all the first 11 Premier League games of the campaign, scoring nine goals in the process to become into the top scorer in the competition.

The former Atletico Madrid striker continued the good run during Chelsea's impressive 5-0 victory over Everton on Saturday, completing the full game while adding one goal and one assists to his tally.

But reports in Spain are saying that Costa arrived at the national camp on Tuesday morning (8 November) with niggles in his groin and a medical report from Chelsea in which the Blues doctors warned the Lopetegui's side about the tiredness of the striker.

However, Marca claims that the Spanish national team doctors have played down fears over a major injury after medical test only found a groin bruise. Yet, the Spanish publication says that the Chelsea striker is still expected to be ready for the World Cup qualifier against Macedonia on 12 November which will come only three days before the friendly with England at Wembley.

AS backed those claims, adding that the Spanish doctors will be monitoring his situation in the coming hours before deciding whether he is able to train with the rest of his Spanish teammates on Tuesday evening.

Meanwhile, on Monday night Costa took advantage of his return to Madrid to meet his former manager at Atletico Madrid, Diego Simeone.

Costa himself posted a picture of the encounter to avoid any transfer speculation, after last summer he was heavily linked with a move back to the Vicente Calderon as the Argentinian boss admitted the Chelsea striker was his top target ahead of Kevin Gameiro.

Gran reencuentro y grandes recuerdos @simeone

A photo posted by Diego Costa (@diego.costa) on