Updated On: 31 May, 2014 08:59 AM IST | | A Correspondent
<p>mid-day looks at some of the teams at Brazil 2014 who can spring an upset and their star players who can turn a match around single-handedly...</p>

Cristiano Ronaldo (Portugal), Radamel Falcao (Colombia), Luis Suarez (Uruguay), Eden Hazard (Belgium) and Yaya Toure (Ivory Coast)
Portugal
Zlatan Ibrahimovic's loss was Cristiano Ronaldo's gain when Portugal beat Sweden in the qualification play-offs. Portugal, ranked a generous third in the world rankings, are not a great team, but they do boast, on form, the world's greatest player. And if you're tempted to think one man cannot do it alone, it is worth remembering what happened in that Zlatan vs Cristiano battle back in November — a 4-2 aggregate win for Portugal with all six goals scored by the tie's two great players.
Cristiano Ronaldo Forward (Age 29)
Although his goal-every-other-game ratio for Portugal is nowhere near his astronomical return for Real Madrid, it can hardly be sniffed at and he has the most star power of any player in Brazil.