LIVERPOOL, England (AP) — Martin Skrtel powered home a header deep into stoppage time to earn 10-man Liverpool a 2-2 draw against Arsenal in the Premier League on Sunday. Despite being mostly outplayed, Arsenal recovered from conceding a 45th-minute goal to Philippe Coutinho by scoring in first-half injury time through Mathieu Debuchy before Olivier Giroud swept home from close range in the 64th. [...] the Reds relied on a center back to get the team out of trouble — in a lengthy period of injury time allotted after Skrtel himself was trodden on by Giroud early in the second half, requiring a long stoppage to bandage his bleeding head.