‘The most savage thing you’ll see all day’: Fans love it as Borussia Dortmund troll Bundesliga rivals RB Leipzig over their lack of history with hilarious #10YearChallenge post Borussia Dortmund got involved with the Facebook's #10YearChallenge The Bundesliga leaders decided to poke fun at their top-flight rivals RB Leipzig The club were only founded on 19 May 2009, and are less than 10 years old By Harry Slavin For Mailonline Published: 16:49 GMT, 16 January 2019 | Updated: 17:03 GMT, 16 January 2019 Viewcomments Borussia Dortmund have decided to get involved in the #10YearChallenge, by poking fun at their Bundesliga rivals RB Leipzig. Dortmund's social media department decided to have a bit of fun with the Facebook initiative and focused their attentions onone of Germany's youngest sides. Formed on 19 May, 2009 Leipzig are less than 10 years old, and the league leaders sought to remind them of this. Borussia Dortmund have targeted Bundesliga rivals RB Leipzig with their #10YearChallenge Uploading their effort to Twitter, the club posted the date 2009, accompanied by a blank panel, while on the right another panel was labelled with the date 2019 and an image of Leipzig's emblem. The reaction was fairly unanimous, as fans applauded the bullishness of the post. One fan tweeted: 'Most savage thing you'll see all day,' while another simply put: 'Best #10YearChallenge I've seen so far.' Even Zenit St Petersburg got involved, reacting to the hostility of the tweet. RB Leipzig themselves were less amused. They replied, pointing to the fact that they had already taken a rise out of themselves in the morning. 'And the award for the most original tweet of the day goes to...' they replied to Dortmund, along with a picture of their original post. Share or comment on this article: All rights reserved for this news site dailymail and under his responsibility