Gulbis falters and throws away first set

Ernst Gulbis led 5-4 in the first set with a break. The Latvian had only lost 2 point on serve throughout the match, but when serving for the set collapsed and lost his serve to love. Simon then fought through the tie-break demolishing a beleagured Gulbis 7-1 to take the set. Can Gulbis come back or will his memories of missed chances in the first set pray on his mind?