Tennis-Serena powers past Collins to reach last 16 in Paris

PARIS (Reuters) - Serena Williams powered confidently into the fourth round of the French Open with a 6-4 6-4 defeat of fellow American Danielle Collins on Friday as the draw opened up enticingly. The 39-year-old seventh seed produced a calm and composed display against a dangerous opponent and is now the highest-ranked player left in the bottom half.