![Eugenie Bouchard thanks her No 1D fan Niall Horan for his support as she won through to the US Open third round | Daily Mail Online Eugenie Bouchard thanks her No 1D fan Niall Horan for his support as she won through to the US Open third round | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2015/09/03/20/2BEDA2F000000578-0-image-a-4_1441307303521.jpg)
Eugenie Bouchard thanks her No 1D fan Niall Horan for his support as she won through to the US Open third round | Daily Mail Online
![The top ten celebrities at the O2 tennis: From One Direction's Niall Horan to Ronnie O'Sullivan and a whole host of Arsenal stars | Metro News The top ten celebrities at the O2 tennis: From One Direction's Niall Horan to Ronnie O'Sullivan and a whole host of Arsenal stars | Metro News](https://metro.co.uk/wp-content/uploads/2013/11/1000x70022.jpg?quality=90&strip=all&zoom=1&resize=644%2C450)
The top ten celebrities at the O2 tennis: From One Direction's Niall Horan to Ronnie O'Sullivan and a whole host of Arsenal stars | Metro News
![Niall Horan Looks Forward To 'Insane' Final at Australian Open 2015 | Niall Horan, One Direction | Just Jared Jr. Niall Horan Looks Forward To 'Insane' Final at Australian Open 2015 | Niall Horan, One Direction | Just Jared Jr.](http://cdn01.cdn.justjaredjr.com/wp-content/uploads/headlines/2015/01/niall-horan-cheers-australia-open-tennis.jpg)
Niall Horan Looks Forward To 'Insane' Final at Australian Open 2015 | Niall Horan, One Direction | Just Jared Jr.
![Niall Horan shakes hands with golfer Danny Willett as they watch Andy Murray vs Nick Kyrgios on day seven of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Niall Horan shakes hands with golfer Danny Willett as they watch Andy Murray vs Nick Kyrgios on day seven of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club,](https://c8.alamy.com/comp/GAE4DB/niall-horan-shakes-hands-with-golfer-danny-willett-as-they-watch-andy-GAE4DB.jpg)
Niall Horan shakes hands with golfer Danny Willett as they watch Andy Murray vs Nick Kyrgios on day seven of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club,
![One Direction's Niall Horan and Liam Payne enjoy the tennis at Wimbledon | Celebrity News | Showbiz & TV | Express.co.uk One Direction's Niall Horan and Liam Payne enjoy the tennis at Wimbledon | Celebrity News | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/79/590x/secondary/174443.jpg)
One Direction's Niall Horan and Liam Payne enjoy the tennis at Wimbledon | Celebrity News | Showbiz & TV | Express.co.uk
![Niall Horan Updates on Twitter: ""@niallpatrol: niall playing tennis I am in love http://t.co/g0PspDbRij"" Niall Horan Updates on Twitter: ""@niallpatrol: niall playing tennis I am in love http://t.co/g0PspDbRij""](https://pbs.twimg.com/media/B99pmSdIMAAdmXH.jpg)
Niall Horan Updates on Twitter: ""@niallpatrol: niall playing tennis I am in love http://t.co/g0PspDbRij""
![Niall Horan (left) from One Direction watches the action on Centre Court during day four of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon Stock Photo - Niall Horan (left) from One Direction watches the action on Centre Court during day four of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon Stock Photo -](https://c8.alamy.com/comp/2D33R7C/niall-horan-left-from-one-direction-watches-the-action-on-centre-court-during-day-four-of-the-wimbledon-championships-at-the-all-england-lawn-tennis-and-croquet-club-wimbledon-2D33R7C.jpg)
Niall Horan (left) from One Direction watches the action on Centre Court during day four of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon Stock Photo -
![Wimbledon 2015: Niall Horan poses for funny selfie as he attends first day of tennis - Mirror Online Wimbledon 2015: Niall Horan poses for funny selfie as he attends first day of tennis - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article5970011.ece/ALTERNATES/s615/Niall-Horan-main.jpg)
Wimbledon 2015: Niall Horan poses for funny selfie as he attends first day of tennis - Mirror Online
![One Direction's Niall Horan and Liam Payne enjoy the tennis at Wimbledon | Celebrity News | Showbiz & TV | Express.co.uk One Direction's Niall Horan and Liam Payne enjoy the tennis at Wimbledon | Celebrity News | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/79/590x/1d-485056.jpg)