Mexico City, July 5 -- Jamie Redknapp has urged that England must quickly adapt to the demanding conditions of the high altitude in Mexico City ahead of their World Cup Round of 16 clash against Mexico.

He said that while altitude training can help, the team have had limited preparation and must now focus on starting strongly and coping with the intense, partisan home crowd.

The former England midfielder stressed the importance of discipline and substitutes in such a high-pressure environment, adding that the atmosphere in Mexico City is expected to be highly charged.

He also noted that England have yet to fully find their rhythm in the tournament, aside from brief flashes, but suggested that a big win in this knockout match could spar...