KEY BISCAYNE, Fla. — Tiger Woods’ wife, Elin Nordegren, took in some tennis Friday with their son, Charlie.

Nordegren and her son watched the first semifinal match at the Sony Ericsson Open, where Andy Roddick beat Rafael Nadal 4-6, 6-3, 6-3.

Woods’ wife and son sat under an awning in club seats near the players’ lounge. Charlie stood on his mom’s lap.

Nordegren was not wearing a wedding ring.

Woods has attended the tournament in the past to root for his friend, Roger Federer. The top-ranked Federer lost this week in the fourth round.