KATHRYN BATTE IN DOHA: Portugal boss Fernando Santos refused to confirm whether strop-throwing Cristiano Ronaldo will start their last-16 clash with Switzerland tonight. The 37-year-old, who has one goal in the tournament so far, started every group match but reacted angrily to being substituted in his team's 2-1 defeat by South Korea last week. Santos, who admitted he was not pleased with Ronaldo's antics, will keep his players guessing over the starting XI until they arrive at the stadium.