Her Miami Open hopes may be over, but Danielle Collins leaves Florida this week with a friend for life.

Collins, the world number 15, was beaten by Aryna Sabalenka on Monday as the American's hopes of retaining her Miami Open title came to an end.

But the 31-year-old's mind may have been elsewhere after she found an injured dog two days earlier on her way out of the Hard Rock Stadium.

Collins found the dog curled up in the middle of the road after it had been hit by a car and took him to a nearby veterinary hospital.

The former world number seven, who asked fans to pray for the dog, has now revealed that she has adopted him and named him Crash.

"Crash is recovering and finally out of the hospital after five days on oxygen support," Collins said on Instagram.

"His breathing is back to normal, his wounds are healing, and he's definitely enjoying all the love he's receiving. He's curious, affectionate and grateful for a second chance at life.

"It was so incredibly painful to witness a dog in so much pain after being hit by a car and left in the middle of the road with so many people driving by his curled up body.

"I'm just grateful I was able to be there and get him the care he needed.

"I've officially adopted him. Once he finishes recovering he'll be attending school."