Great Britain DOMINATES in the 4x100m mixed relay final as they brought home another gold medal in this discipline. Follow more on the BBC Sport app, iPlayer and Sounds. ============= SUBSCRIBE so you never miss out on our best videos ➡️➡️bit.ly/1sFodyu ============= Find us here: BBC Sport: bbc.co.uk/sport Facebook: facebook.com/BBCSport X: x.com/BBCSport Instagram: instagram.com/bbcsport TikTok: tiktok.com/@bbcsport #bbcsport [Copy & paste title here]