The second ACM International Workshop on Multimedia Content Analysis in Sports (ACM MMSports'19) is held in Nice, France on October 25th, 2019 co-located with the ACM International Conference on Multimedia 2019 (ACM Multimedia 2019). The goal of this workshop is to bring together researchers and practitioners from academia and industry to address challenges and report progress in mining, analyzing, understanding and visualizing the multimedia/multimodal data in sports. The combination of sports and modern technology offers a novel and intriguing field of research with promising approaches for visual broadcast augmentation, understanding, statistical analysis and evaluation, and sensor fusion. There is a lack of research communities focusing on the fusion of multiple modalities. We are helping to close this research gap with this workshop series on multimedia content analysis in sports.