How to watch Dortmund vs. Mainz online for free

TL;DR: Live stream Dortmund vs. Mainz in the Bundesliga for free on BBC iPlayer. Access this free live stream from anywhere in the world with ExpressVPN.For a long time it has seemed like Bayern Munich would walk towards the Bundesliga title, but the gap at the top has been closing in recent weeks. Now Dortmund are only six points behind the leaders. They face Mainz at home this weekend, a game they'll expect to win. Mainz have the talent to shock the Westfalenstadion, but they'll need to be at