New York: Tennis legend Pete Sampras singled out controversial Australian player Nick Kyrgios for some words of wisdom, asking him to behave during a promotional event here.


Pete Sampras Pic/Getty Images 

Kyrgios on Monday joined tennis' biggest names, including Serena Williams, Rafael Nadal, Roger Federer and Andre Agassi, Eugenie Bouchard and Maria Sharapova, for a Nike apparel promotion ahead of next week's US Open, reports news.com.au.