Daily Bagel: Highlights of Gavrilova's win, Del Potro's message to fans

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.

• "Hello, hello? Is this thing on?":

• Highlights from Daria Gavrilova's big win over Maria Sharapova last night at the Miami Open:

• This glare Sharapova shot Gavrilova after a successful Hawk-Eye challenge is already going viral:

• Juan Martin del Potro's message to fans after his tight loss to Vasek Posipisil in the first round of Miami. 

• Del Potro says he's still playing with pain but will do everything he can to keep playing tennis.

"In the end, I want to play tennis. If I have to learn a different backhand to keep playing, I will do it. I think is the biggest goal for me is to keep trying and stay mentally strong enough to go through all of the injuries."

• Four ATP teenagers (Borna Coric, Hyeon Chung, Andrey Rublev, and Alexandre Zverev) are into the second round of the Miami Open for the first time since 2007. 

• At least Caroline Woznicaki has a sense of humor about her service fails: