MILWAUKEE (WITI) -- Chloe and Claire Gruenke are very close.
They're 13-year-old twin sisters who spent the weekend competing at the Southern Illinois State Track Meet.
The girls were running the 800, when all of a sudden, Chloe was having trouble.
“I felt something pull and pop in my thigh -- and then around the second lap it hurt and I couldn’t go anymore and I fell to the ground," Chloe Gruenke said.
That's when something amazing happened.
Claire Gruenke put her sister on her back -- and they finished the race together.
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