While Rory McIlroy is no stranger to pumping iron, the world's No 1 golfer will need more than a few extra sessions in the gym to get close to matching American teenager Brad Dalke. McIlroy knew he was beaten even before he  took the strain for an arm wrestle with the ripped high schooler who made short work of a strength test against the Northern Irishman. Dalke posted a video of the light-hearted encounter on his Twitter page with the note, 'Sorry Rory.' 'Look at this ... No chance,' Rory McIlroy says as he prepares to arm wrestle 17-year-old Brad Dalke . Dalke makes short work of the strength test against the world No 1 golfer who was a guest at a junior event . McIlroy is no match for Dalke, the teenager who will join Oklahoma University in the autumn . McIlroy had run a clinic and offered some inspirational words to players on Friday at a junior invitational at the Sage Valley Golf Club in Graniteville, South Carolina, sponsored by Nike. There he met Dalke and the pair agreed to an arm wrestle. As they took a knee, with elbows on a table as is customary, McIlroy couldn't help but be impressed by the 17-year-old's biceps. 'Look at this... no chance,' McIlroy laughed while poking Dalke's arm. 'I shouldn't be a golfer,' Dalke, who listed 'working out' among his interests on his 2014 Junior US Ryder Cup team profile, joked back. Oklahoma University hopes he wasn't serious having had the prodigy lined up via a verbal agreement to play for them since he was just 12 years old. McIlroy, whose long game is one of the best in golf, pumps iron in the gym . The weights work in the gym didn't help McIlroy when he came face-to-face with Dalke . Schooling the world's best golfer in an arm wrestle will do his bragging rights no harm when he arrives on campus to end the institution's five-year wait for him to come of age this year. Dalke will join the Sooners after graduating a year early from high school, having completed extra classes since he was a freshman (the equivalent of year nine in the UK). He told Golf Week last year that it was a 'dream come true' when he was told he'd be able to ditch move into college early. 'It's the only place I wanted to go,' Dalke said. - 2008 Drive, Chip and Putt National Champion . - US Kids World Champion in 2010 . - Committed verbally to Oklahoma University at the age of 12. - Won the 2011 AJGA Thunderbird International Junior. - American Junior Golf Association First Team All-American in 2011, 2012 and 2013 . - Member of the USA team that won a fourth successive Junior Ryder Cup in 2014 at Blairgowrie Golf Club. - Tied for third in the 2014 Junior PGA Championship . - Winner of the 2013 PING Invitational . - Equalled Tiger Woods’ Wyndham Cup appearances record playing from 2011 to 2014 . - Moved from home in McKinney, Texas, to Hobart, Oklahoma, where less credits are required to graduate high school. - Has a 4.0 grade point average and will begin university at Oklahoma a year early after picking up extra credits since he was a freshman. Dalke is a talented junior golfer and was a member of Team USA when they won the 2014 Junior Ryder Cup . Dalke celebrates the USA's fourth successive Junior Ryder Cup win Blairgowrie Golf Club . Dalke committed to Oklahoma University at age 12 and has finished high school a year early to join them . Getting one over one of the greats of the game could also give Dalke a confidence boost that he's been in need of on the course after hitting a disappointing 85 in the first round at Sage Valley. He shared his frustration with his Twitter following of less than 2,000, a number that is sure to grow. 'Really bad day of golf today. Can't wait to get through this slump, and even though it's tough to see now, I know I'll be stronger in the end,' he posted. He was right. The next day he shot a much-improved 72 and wrote: 'Way better day today. Shot a 72. Felt like a whole different person out there.'
Rory McIlroy was a guest at a Nike-sponsored junior event in the US . World No 1 agreed to arm-wrestle 17-year-old player Brad Dalke . Teen Dalke demolished McIlroy, who admitted he had 'no chance' Dalke verbally agreed to join Oklahoma University when he was 12 .