Transcript for Serena Williams lost to Angelique Kerber in the Wimbledon final

We turn now to wimbledon tonight, and Serena Williams faced off in her firnd slam final since giving birth year ago. And the superstar's message to moms. Reporteonight, Rena Willis and her gical ru stopping one match short in the wimbledon final. The tennend with an ional alu to working moms everywhere. To all the moms out, I was playinr you todaani tried. Reporter: Close friend duchess Meghan, along with sisterlaw duchess Kate, nd to cheer. The winner, angelique Kerber pa tribute T N mom. You will have your next grand slam title sooi'm reallyreally sur eporter: T 23-time grand slam champion rocketed back into form just ten months after the H St child, Olympia, who provided spiration R her wimbn comeback. Yes, ola, your dreams can come true, too. Serena's re ha't been easy. She suffered major health comptiher deryg life-threatening pulmonary embolism. She had dropped to 454th in the world rankings, now she's ranked aing. These two weeks have really show, okay, I can compete. Eporter: Williams says this wasn't a defeat, but rather a start ofew chapter. Her next grand slatle will break thl time recd,om.

This transcript has been automatically generated and may not be 100% accurate.