On 7 January 2006, in an FA Cup third-round tie against Luton Town, Alonso assisted Liverpool to a 5–3 comeback victory after being down 3–1 early in the second half. Alonso scored two impressive goals from distance: one from 45 yards, and the other 65 yards from goal; behind the half-way line. Consequently, Alonso's goals marked a stroke of luck for a Liverpool fan who won £25,000 from a £200 bet on Alonso scoring from within his own half. Alonso suffered an ankle injury in a 1–3 away victory over Portsmouth, putting his participation in the FA Cup final in doubt. However, he recovered sufficiently to start the game against West Ham United and Gerrard scored Liverpool's third goal from Alonso's free kick, pulling the team ahead of the opposition. Alonso, still affected by the injury, could not manage the entire 90 minutes and was substituted in the second half. Liverpool won on penalties without his help but Alonso still earned his first FA Cup winners' medal.