By Nick Georgandis
Here's a look at famous tennis players getting older for the week of January 13-19.
January 13 - Argetina's Guillermo Coria turns 31. A 10-year pro, Coria was a finalist at the French Open in 2004 and reached No. 3 in the world in singles play. He was named for fellow Arengtine legend Guilermo Vilas.
January 15 - Four-time Grand Slam winner Mary Pierce turns 38. Pierce won the Australian open in 1995, after which she rose to the No. 3 spot in the world, and won the French open in 2000. She also reached the US Open final in 2005. She won the2000 French Open doubles championship as well, and the 2005 mixed doubles title at Wimbledon.
January 19 - Sweden's Stefan Edberg, a former No. 1 singles player, is 47. Edberg won 42 titles in singles, including the Australin Open twice (1985, 1987), Wimbledon twice (1988, 1990) and the US Open (1991, 1992). In doubles, he won the Australian Open in 1987 and 1996 ,and the US Open in 1987. He reached No. 1 in the world in doubles in June 1986, and won a bronze medal in both singles and doubles.