It has been three years since the COVID-19 pandemic first hit, and while cases and hospitalizations are on the decline across the country, millions of long COVID patients are still battling lingering symptoms. CBS News contributor Dr. Celine Gounder visits a facility to learn more about the puzzling condition.The MLB baseball seasons starts tomorrow and fans will notice a few big changes to the way the game is played. MLB Commissioner Rob Manfred joins "CBS Mornings" to discuss the changes -- including a new pitch clock -- and why he thinks it will help rekindle fan interest in baseball.Freshman baseball player Olivia Pichardo is the first woman to play Division I baseball. A walk-on athlete at Brown University, Pichardo had always dreamed of playing the game at the collegiate level. The cast of "The Marvelous Mrs. Maisel" reflects on the show's successful run ahead of its final season. CBS News' Anthony Mason visits Midge Maisel's apartment with Rachel Brosnahan and Alex Borstein, the Upper West Side with Tony Shalhoub and Marin Hinkle, and Carnegie Hall with Luke Kirby to talk about the hit series coming to an end.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.