Believe it or not, Chelsea are in talks to sign yet another attacking midfielder.
But, even at a bargain price by Chelsea's standards, Atsu would go down as one of the most pointless signings in Premier League history.
The Blues have already added Willian and Andre Schurrle to their ranks this summer, while Kevin de Bruyne has returned after a season-long loan at German side Werder Bremen.
Does the 21-year-old really stand any chance of ousting Roman Abramovich's big-money buys and forcing his way into the Special One's starting XI?
The answer, quite simply, is no.
After returning to West London to take charge, Mourinho is looking for players he can trust to perform on the big stage and get his second spell at the club off to a successful start.
That is why the old guard of Petr Cech, John Terry and Frank Lampard, who all played under the Portuguese during his first spell as boss, still form the spine of his team.
That is why he has tried so hard to sign Wayne Rooney, a player with a decade of Premier League experience under his belt.
Unfortunately for Atsu, he doesn't fit Mourinho's blueprint for this season.
The Ghanaian winger has less than 20 appearances under his belt for Porto and has struggled to assert himself in their starting XI.
The youthful players which Mourinho has put his faith in so far—Oscar, Hazard, de Bruyne and Schurrle—have all played plenty of first-team football, be it at Chelsea or elsewhere.
They know what it takes to play every week in a competitive league, to win games and be successful. Atsu doesn't.
Arrowsmith's report also mentions the possibility of Atsu being sent straight out on loan if he comes to Stamford Bridge, an admission that he is far from first-team ready.
While some regular games would undoubtedly aid his development, will Mourinho even need him back for the start of next season? Or even the season after?
With league, cup and European games to consider, squad depth at a club like Chelsea is vital. But with all of their attacking midfielders under the age of 26, the chances of Atsu beating off the competition to cement his place in Mourinho's side look slim—even over the next few years.
He would be far better served staying at Porto and learning his craft than playing in Chelsea's under-21 side or being shipped out on loan to one of their feeder clubs.
And as for Mourinho? He would be wise to use the money on an improved bid for Rooney, a player who is in a position to make an immediate impact.