Madrid:FC Barcelona forward Lionel Messi is almost certain to miss the Champions League final with the muscle injury, El Pais newspaper said on Tuesday. Messi has "a two per cent possibility'' of recovering in time to play against Arsenal on May 17 in Paris, the daily quoted an unnamed member of Barcelona's medical staff as saying. The teenager, who returned to Barcelona on Saturday after a week's rest in Argentina, tore right thigh muscle fibers in the Champions League game against Chelsea on March 7. He aggravated the injury during training early last month. Messi, one of Argentina's most promising talents since Diego Maradona, is expected to be fit for the World Cup in Germany, although he has been warned not to rush his recovery. The tournament begins on June 9. Argentina faces Ivory Coast, Serbia-Montenegro and the Netherlands in Group C.