Serena Williams is returning to the tour after nearly a year

Serena Williams is returning to the tour after nearly a year off because of various health issues.Williams will accepted a wild card to compete on England's south coast in one of the traditional grass court warmup events for Wimbledon, which begins on June 20.Williams has not played an official match since winning her 13th Grand Slam title at the All England Club last July.A few days after that victory, Williams cut her foot on glass at a restaurant. She wound up having two operations because of that and later was treated for a blood clot in her lung.Williams told that she was so exited to be healthy to compete again.She past 12 months have been extremely tough and character building.And also say, she have so much to be grateful for. she is thankful to her family, friends, and fans for all of their support.Shortly after winning her fourth Wimbledon singles championship last summer, Williams hurt her foot while in Germany. She played in an exhibition match in Belgium against Kim Clijsters days later. But when she returned to the United States she had the first of two operations for her injury. The second surgery was in October, and she said she spent 10 weeks in a cast and 10 weeks in a walking boot.The 29 year old American was diagnosed in February with blood clots in her lung. After that, she said she needed treatment for a hematoma  a gathering of blood under the skin on her stomach.She returned to practice in April, an event she announced via Twitter, posting a picture of herself on court in a pink bodysuit.Williams' older sister Venus, a seven time Grand Slam singles champion, also is returning to action after an extended injury absence. Venus Williams has been sidelined since injuring her hip during the Australian Open in January, but her agent said last month she was on track to play at Eastbourne and Wimbledon.When healthy, the Williams sisters have dominated women's tennis for much of the past decade. In addition to their 20 total major singles titles, both have spent time at No. 1 in the WTA rankings.At Wimbledon, the sisters have combined to win nine of the past 11 championships. In that span, the sisters played each other in four of the finals at the All England Club.