(VOVworld) - Top Vietnamese tennis player Ly Hoang Nam jumped 126 places to 933rd in the latest ATP rankings announced on Monday. Nam's improved ranking came after he entered the semi-finals of the recent Cambodia F27 Futures tournament. With this jump, the 18-year-old has become the first Vietnamese tennis player to enter the ATP's top 1,000 rankings. Nam said his next target would be to enter the top 800 rankings.