New Delhi, June 18 -- As Argentina built up for their World Cup defence, the discussion was about how frail Lionel Messi really was. Will their talisman lead the campaign for back-to-back triumphs from the start? He walked off on May 24 from an Inter Miami game due to fatigue in the left hamstring-the tough muscle and tendon groupings that come under the most strain in Messi's stop-start tactics to put off his marker. The football world heaved a sigh of relief first, and then burst into delirious joy as they discovered that the only sign of softness Messi showed was being overcome by emotion after scoring the first goal in the 17th minute of the Group J game against an overawed Algeria. Messi turns 39 next Wednesday, but the manner in which...