<p class="title">Tennys Sandgren's mum was celebrating so hard after watching her son make the Australian Open quarterfinals that she cracked a rib and had to go to the hospital.</p>.<p class="bodytext">The unheralded American has been a revelation at Melbourne Park, upsetting former champion Stan Wawrinka in round two before sending fifth seed Dominic Thiem packing on Monday.</p>.<p class="bodytext">His best ever Grand Slam run was all too much for his mum Lia, who came a cropper as she jumped up and down in excitement back home in Tennessee, crashing onto a pool table.</p>.<p class="bodytext">"She didn't have a concussion, thankfully. Maybe a tiny one," said the 26-year-old, who cut off his ponytail and shaved his handlebar moustache for a new-look at the opening Grand Slam of the year.</p>.<p class="bodytext">"She cracked a rib."</p>.<p class="bodytext">He explained that he has a core supporter group back in Gallatin who get together to watch his bigger games, including his mum.</p>.<p class="bodytext">"They'll go in the basement, put the match on the projector screen on the bottom. There's a pool table down there, as well," he said.</p>.<p class="bodytext">"They were jumping up and down, celebrating. She fell onto the pool table, cracked a rib. Whoops.</p>.<p class="bodytext">"I was pretty worried," he admitted. "She was describing her pain level. She's a tough woman. I was like, 'You need to go to the hospital'.</p>.<p class="bodytext">"I was concerned about it. She went to the hospital."</p>.<p class="bodytext">Sandgren, only the second man in the last 20 years to make the quarterfinals on his Australian Open debut, plays Korean giant-killer Chung Hyeon on Wednesday for a place in the semis.</p>.<p class="bodytext">His mum will no doubt be taking it easy. Asked how she was, he said: "She's lying down, resting."</p>
<p class="title">Tennys Sandgren's mum was celebrating so hard after watching her son make the Australian Open quarterfinals that she cracked a rib and had to go to the hospital.</p>.<p class="bodytext">The unheralded American has been a revelation at Melbourne Park, upsetting former champion Stan Wawrinka in round two before sending fifth seed Dominic Thiem packing on Monday.</p>.<p class="bodytext">His best ever Grand Slam run was all too much for his mum Lia, who came a cropper as she jumped up and down in excitement back home in Tennessee, crashing onto a pool table.</p>.<p class="bodytext">"She didn't have a concussion, thankfully. Maybe a tiny one," said the 26-year-old, who cut off his ponytail and shaved his handlebar moustache for a new-look at the opening Grand Slam of the year.</p>.<p class="bodytext">"She cracked a rib."</p>.<p class="bodytext">He explained that he has a core supporter group back in Gallatin who get together to watch his bigger games, including his mum.</p>.<p class="bodytext">"They'll go in the basement, put the match on the projector screen on the bottom. There's a pool table down there, as well," he said.</p>.<p class="bodytext">"They were jumping up and down, celebrating. She fell onto the pool table, cracked a rib. Whoops.</p>.<p class="bodytext">"I was pretty worried," he admitted. "She was describing her pain level. She's a tough woman. I was like, 'You need to go to the hospital'.</p>.<p class="bodytext">"I was concerned about it. She went to the hospital."</p>.<p class="bodytext">Sandgren, only the second man in the last 20 years to make the quarterfinals on his Australian Open debut, plays Korean giant-killer Chung Hyeon on Wednesday for a place in the semis.</p>.<p class="bodytext">His mum will no doubt be taking it easy. Asked how she was, he said: "She's lying down, resting."</p>