The Everton star missed from the spot as his side looked to fight back against Nigeria and now knows reaching the last 16 is out of their hands
Iceland captain Gylfi Sigurdsson described his missed penalty against Nigeria as the "toughest moment" of his career.
With the Scandinavian minnows 2-0 down following two strikes from Ahmed Musa in Volgograd they threatened a dramatic comeback having won an 80th minute penalty.
Everton star Sigurdsson stepped up from the spot but could only send his effort over the crossbar.
"It's tough to take. It's probably the toughest moment of my career," he said when speaking to Goal.