By Douglas Holtz-Eakin
The young drop coverage to avoid higher premiums
Two-time champion Victoria Azarenka has withdrawn from the Sony Open because of a right ankle injury.

It was Sharapova's second career title at Indian Wells, where she first won in 2006. Wozniacki won here in 2011. The women met in a final for the first time; their six other matches came in earlier rounds.
Rapper Redfoo of LMFAO and "Heroes" actor Sendhil Ramamurthy have entered the U.S. Open national playoffs in their bids to earn berths in the final Grand Slam tennis tournament of the year.
Sam Stosur has withdrawn from her quarterfinal match against Angelique Kerber at the BNP Paribas Open because of a right calf injury.
Serena Williams has withdrawn from the Dubai Championships because of a lower back injury.
Second-ranked Victoria Azarenka withdrew from the Dubai Championships on Tuesday because of a bone bruise in her right foot.

Azarenka will give up the No. 1 ranking to the second-ranked Williams on Monday but extended her current winning streak to 14 matches, including her second Australian Open title. More importantly, she may have turned around what has been a one-sided rivalry against Williams.
Serena Williams spent most of the past week downplaying the prospect of returning to the top of the rankings. Then it happened and she couldn't hold back the tears.
A day after regaining the No. 1 ranking, Serena Williams defeated Maria Sharapova 6-3, 6-2 Saturday to reach the Qatar Open final. Williams has beaten Sharapova 10 straight times.

The 15-time Grand Slam winner will replace top-ranked Victoria Azarenka in next week's rankings after coming from a set down to beat former Wimbledon champion Petra Kvitova 3-6, 6-3, 7-5 on Friday in the quarterfinals of the Qatar Open.
Serena Williams has the chance to reclaim the No. 1 ranking at the Qatar Open, a spot the 15-time major champion has not held since October 2010.
Serena Williams can reclaim the No. 1 ranking at the Qatar Open, a spot the 15-time major champion has not held since October 2010.
Redfoo was chatting away on the red carpet at the Grammy Awards when his nephew and fellow party rocker Sky Blu popped up to join in.
Li Na has pulled out of next week's Qatar Open because of the ankle injury she sustained in the Australia Open final.
Li Na has pulled out of next week's Qatar Open because of the ankle injury she sustained in the Australia Open final.
She says she worked hard in recent days to rehabilitate the injury, but it didn't heal sufficiently to play at Key Biscayne.
Azarenka showed no signs of the injury during her run in Doha, where she successfully defended the title, nor did she mention any foot trouble.