It’s been a whirlwind week for Michy Batshuayi.Five days ago he was celebrating after scoring a brace in Chelsea’s 3-0 win over Newcastle United in the FA Cup. Three days later he was a Borussia Dortmund player after signing a loan deal with the Bundesliga club. And on Friday night he made his debut against FC Koln.As debuts go, Batshuayi’s could hardly have been more perfect.The 24-year-old scored a goal either side of half-time, putting Dortmund ahead on both occasions, and then assisted the winner for Andre Schurrle with five minutes remaining.Final score: 3-2 Dortmund, whose supporters have a new hero in Batshuayi, the man who has come in until the end of the season to replace Pierre-Emerick Aubameyang.There was a huge reaction to Batshuayi’s performance last night - click HERE to see what football fans were all saying about the Belgium international - and it didn’t take long after the final whistle for the Chelsea loanee to take to Twitter.

Batshuayi posts funny tweet after Dortmund debut

Batshuayi has developed a reputation in England as being a bit of a joker on social media - and that’s one of the reasons why he’s so popular.

It will almost certainly be a similar story with German football fans. His Twitter game is too good not to win them over.

Dortmund posted a tweet, in German, with the following post-match quote from Batshuayi: "I am very, very happy to be at Borussia Dortmund! In the two days I tried to focus on the game today. It was good, but I want to keep improving!"

After seeing the quote, Batshuayi tweeted: "Wow mein deutsch ist very good already 😂"

One Dortmund fan replied: “OUTDONE AUBAMEYANGS LEGACY ALREADY.”

Batshuayi's funny response when asked why he signed

Batshuayi was also asked why he signed for Dortmund after the match, to which he replied: “I love Borussia Dortmund. Black and yellow are my favorite colors because I love Batman and SpongeBob.”

Oh, Michy.

Batshuayi also posted a (slightly) more serious tweet

But on a slightly more serious note, he also tweeted: “90mns, two goals, an assist & a great victory 🖤💛 dream debut with @BVB #BatsmanBack.”

Batsman is, indeed, back - and he’s clearly enjoying his football again, which is great to see.