![TENNIS on Twitter: "WATCH: Seven-time major champion Justine Henin explains the importance of grips when transitioning between a one-handed topspin backhand and slice: https://t.co/AjaVEaLoiU… https://t.co/eTKpq1hvtb" TENNIS on Twitter: "WATCH: Seven-time major champion Justine Henin explains the importance of grips when transitioning between a one-handed topspin backhand and slice: https://t.co/AjaVEaLoiU… https://t.co/eTKpq1hvtb"](https://pbs.twimg.com/media/D9CbkixU8AEVPNW.jpg)
TENNIS on Twitter: "WATCH: Seven-time major champion Justine Henin explains the importance of grips when transitioning between a one-handed topspin backhand and slice: https://t.co/AjaVEaLoiU… https://t.co/eTKpq1hvtb"
![Ana Ivanovic, Justine Henin, Jo-Wilfried Tsonga, Andy Murray - Justine Henin and Andy Murray Photos - adidas Celebrates the 10th Anniversary of the adidas Barricade - Zimbio Ana Ivanovic, Justine Henin, Jo-Wilfried Tsonga, Andy Murray - Justine Henin and Andy Murray Photos - adidas Celebrates the 10th Anniversary of the adidas Barricade - Zimbio](https://www1.pictures.zimbio.com/gi/adidas+Celebrates+10th+Anniversary+adidas+6Ylpit7-jrox.jpg)
Ana Ivanovic, Justine Henin, Jo-Wilfried Tsonga, Andy Murray - Justine Henin and Andy Murray Photos - adidas Celebrates the 10th Anniversary of the adidas Barricade - Zimbio
![Top seed and world number one player Justine Henin of Belgium acknowledges the cheers of the crowd on Center Court after winning her Rogers Cup semifinal match 6-3, 6-0 against Zi Yan Top seed and world number one player Justine Henin of Belgium acknowledges the cheers of the crowd on Center Court after winning her Rogers Cup semifinal match 6-3, 6-0 against Zi Yan](https://c8.alamy.com/comp/W0AFME/top-seed-and-world-number-one-player-justine-henin-of-belgium-acknowledges-the-cheers-of-the-crowd-on-center-court-after-winning-her-rogers-cup-semifinal-match-6-3-6-0-against-zi-yan-of-china-at-the-rexall-center-in-toronto-canada-on-august-18-2007-upi-photochristine-chew-W0AFME.jpg)
Top seed and world number one player Justine Henin of Belgium acknowledges the cheers of the crowd on Center Court after winning her Rogers Cup semifinal match 6-3, 6-0 against Zi Yan
![Belgian Justine Henin holds the trophy after winning the Roland Garros Tennis Open against Serb Ana Ivanovic, near Paris, June 9, 2007. Henin won 6-1, 6-2. (UPI Photo/Eco Clement Stock Photo - Alamy Belgian Justine Henin holds the trophy after winning the Roland Garros Tennis Open against Serb Ana Ivanovic, near Paris, June 9, 2007. Henin won 6-1, 6-2. (UPI Photo/Eco Clement Stock Photo - Alamy](https://c8.alamy.com/comp/TYXYE4/belgian-justine-henin-holds-the-trophy-after-winning-the-roland-garros-tennis-open-against-serb-ana-ivanovic-near-paris-june-9-2007-henin-won-6-1-6-2-upi-photoeco-clement-TYXYE4.jpg)
Belgian Justine Henin holds the trophy after winning the Roland Garros Tennis Open against Serb Ana Ivanovic, near Paris, June 9, 2007. Henin won 6-1, 6-2. (UPI Photo/Eco Clement Stock Photo - Alamy
![Belgium's Justine Henin waves to the crowd after defeating Russia's Svetlana Kuznetsova during the semi-finals of the Dubai Duty Free Women's Tennis Open on February 23, 2007. Henin won the match 1-6 Belgium's Justine Henin waves to the crowd after defeating Russia's Svetlana Kuznetsova during the semi-finals of the Dubai Duty Free Women's Tennis Open on February 23, 2007. Henin won the match 1-6](https://c8.alamy.com/comp/TXP6FP/belgiums-justine-henin-waves-to-the-crowd-after-defeating-russias-svetlana-kuznetsova-during-the-semi-finals-of-the-dubai-duty-free-womens-tennis-open-on-february-23-2007-henin-won-the-match-1-6-6-4-6-0-henin-previously-won-the-dubai-tournament-in-2006-and-2005-upi-photonorbert-schiller-TXP6FP.jpg)