Leeds United have been incredibly busy this summer.
After securing promotion to the Premier League last term the club's efforts have been solely focused on adapting to life in the top tier.
It's been 16 years since they last graced the top flight and they know that they face a big challenge to compete.
Despite winning the Championship by 10 clear points last term, the Leeds hierarchy know that they need to strengthen their squad if they're to avoid relegation.
Deals have already been completed for the likes of Robin Koch and Rodrigo, while the club have also been linked with a number of other players around the world.
But there's another summer arrival who looks likely to pose the biggest headache this summer.
Of course we're talking about Jean-Kevin Augustin.
The striker arrived at Elland Road on loan in January this year but was limited to just three appearances.
But with the loan deal not working out, the Whites soon went cold on that idea.
As a result it seems that the German side will be pursuing legal action, with RB Leipzig's sporting director Florian Scholz saying that they are ready to proceed with their appeal.
"Leeds is currently in the process of spending a lot of money on the transfer market but does not stand by its contractual obligations.
"We are ready to take further steps."
GIVEMESPORT'S Phil Spencer says...
This is turning into a royal mess.
Jean-Kevin Augustin's time at Leeds United was tipped to be a huge success with the striker expected to tear up trees in West Yorkshire.
But that didn't happen.
Augustin was limited to just three cameo appearances during his time at the club with a lack of fitness being a key issue.
As the reports claim, Leeds did agree a mandatory deal to sign the player permanently which means that the club are not holding up their end of the deal.
If that's the case then RB Leipzig have every right to pursue legal action.
We don't know what will happen from a legal point of view, but what we do know is that with a future at Leeds unlikely, Augustin will want a prompt solution so that he can put this whole episode behind him and move on with his career.
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