Serena Williams Mourns Death of Her Beloved Dog: RIP Jackie [PHOTOS]

MStars News is sitting up here with tissues after Serena Williams broke our hearts with the loss of her dog, Jackie. The tennis champion announced Tuesday that her beloved baby died.

In the video clip, Williams tried her best not to cry as she revealed that her baby Jackie wasn't doing so well. Williams called her 16-year-old dog the "love of her life" and "her best friend."

Williams' heart was breaking as she said, "I just want to share this with everyone 'cause she's getting old and she's really struggling and she means the world to me ... and she's made my life better." That was a tear moment for us as Jackie tried so hard to hold her head up.

For all of you pet lovers out there, you know how Williams feels. A lot of us here at MStars News have pets of our own––they really do put a smile on your face, especially with their adorable personalities.

In a series of Instagram photos, Williams remembered her baby and wrote: "My special friend in which I got at 17 (2 weeks before I won my very first Grand Slam) left me today."

Williams continued, "She was 16 years young and up until a few days ago was still sprinting. Her poor body gave out this morning and she had a way of telling me it was time for me to be brave and let her go. With my dad by my side we were able to say a loving goodbye. She was with me from 1999 until today and I miss her so much."

She finished, "I got out of the shower this afternoon and she was not there to lick my leg as she always did everyday to remind me how much she loved me. I feel so lucky to have such a special friend. Give your dog, cat, pet a big hug. #breakingheart #bff Jackie Baila Pete Williams I will miss you and your memory will live forever."

RIP Jackie.