By Samantha Joseph
JENSEN BEACH - Muriel Berg has a powerful forearm. At 5 feet7 inches tall she is a formidable opponent at the net and in the forecourt of tennis matches.
She also just celebrated her 89th birthday.
Twice a week, three times if she can get a game, she heads to North River Shores Tennis club in Jensen Beach for doubles matches that last about two hours.
"I've been doing this for years," she said. "It's fun. I get to run around the court."
At nearly 90, the Port St. Lucie resident is the club's oldest member.
She's also one of its most vivacious, staffers say.
"She's absolutely an incredible person," said Jane Borman, an employee in the pro shop. "She sings, she's talented, she's fit, she's 89 and clever. She's just colorful."
On July 17, the staff of the club organized a birthday surprise party for Ms. Berg, who has been a member since the company opened its doors back in 1976, according to employee Karin DeCoste.
When her friends greeted her with a birthday cake, card and balloons, a surprised and grateful Ms. Berg thanked them with a surprise of her own.
A singer who performs three times a year with the Treasure Coast Community Chorus, she crooned a funny, witty and peppy original song, "I Wish I Were 50 Again."
"It was so lovely what they did," she said.
At the club that day, she played three rounds of tennis.
"I'm 89, but I don't feel it. I feel like maybe 65 or less," she said with a laugh.
Ms. Berg has been playing tennis for more than 40 years. She starting around 1965 and has played recreationally ever since.
"I was already past the age of doing anything except fun play," she said.
A former legal secretary, she used to live in New Providence, N.J., before moving to Florida. Now, she plays bridge and is a grandmother, whose 18-year-old grandson, Ryan Berg, just graduated from high school.
At 89, Ms. Berg said she saw no reason why she should slow down on the court on in her life in general.
She said, "As long as I'm capable, I'll keep going."
Watch Muriel's birthday song recorded after her match below