LONDON: Spain striker Diego Costa could miss next month's European Championship finals due to his latest hamstring injury, Chelsea's interim manager Guus Hiddink said on Friday. The Brazilian-born forward missed Wednesday's 1-1 Premier League draw at Liverpool and will not be back for Sunday's final game of the season at home to champions Leicester City. 'He needs a good rest and with training he might be fit for the Euros but I'm not sure,' Hiddink told a news conference. Spain coach Vicente del Bosque will name his initial 23-man squad on Tuesday, with the option to make changes by May 31. The European champions have been drawn in Group D with Croatia, the Czech Republic and Turkey at the Euro 2016 finals, which run from June 10-July 10 in France.