Bruno Fernandes is convinced the signing of Alex Telles is the key component behind Luke Shaw's dramatic improvement at Manchester United after the left-back won the club's Player of the Month award.
It was not so long ago that Shaw's United career appeared to be petering out to an underwhelming conclusion, particularly during Jose Mourinho's ill-fated reign.
In two-and-a-half years playing for the Portuguese coach, Shaw only made 33 Premier League appearances. While he did have injury and fitness problems, the manager's attitude seemingly did little to endear himself to the player.
Mourinho criticised Shaw publicly on several occasions, yet the left-back kept his head down and – to the surprise of very few – ultimately outlasted the 'Special One', kicking on brilliantly under Ole Gunnar Solskjaer.
His five assists this season is already a personal high for a Premier League season, having only managed seven in total in previous campaigns, but that's just the tip of the iceberg – Shaw's chance creation frequency of 2.44 per game is almost double his previous best of 1.3 in 2016-17, and that was from just 11 appearances.
The only defender to lay on goalscoring chances at a better rate than Shaw is Ryan Fredericks (2.45), though his marginally improved record comes from 13 fewer games than Shaw's 23.
Liverpool's Andrew Robertson has previously been held up as something of a standard-bearer for full-backs in the Premier League, yet Shaw's 31 key passes from open play is just one less than his 32 from four fewer outings. Joao Cancelo leads the way (36), though he does count set-piece deliveries as among his strong points – the United man does.
Statistically, this season is an outlier for Shaw in almost every regard and highlights just how much of a step forward he has taken, but Fernandes is convinced there has been one major catalyst for this resurgence.
Speaking to the United website ahead of Sunday's derby clash with Manchester City, Fernandes said: "[Shaw]'s been playing really, really well in the last few months. I think he started a little bit slow like everyone did because at the beginning of the season we didn't start good.
"I think the competition between Alex and Luke has given both of them the chances to be better and to improve. This is really important because you know if you are not performing well you will be out of the team.
"I think Luke started to perform well when he had that pressure from Alex. At the same time, Alex when he plays has played really well because he knows that Luke is on the bench.
"So, the pressure between them is good but the relationship between them is better, I have seen that in the stands. Alex is always pushing to help everyone and I remember when I came off against Real Sociedad it was Luke in the stands and I saw a lot of times Luke pushing to help Alex.
"This is what we're about. You can be fighting for the same place, but you are fighting for the same achievements, you know.
"This has to be like that in every position in the team, we have to understand that whoever is playing it's because the manager thinks he's better for the team in that moment and the most important thing is the team.
"I think everyone is happy for Luke to win this Player of the Month award and I'm happy too because he deserves it, and I hope he can continue this form until the end of the season because he knows Alex is there to take his position."
Sunday's trip to City will see Fernandes go up against some familiar faces in Ruben Dias, Bernardo Silva and Cancelo, all of whom are colleagues of his at international level with Portugal.
All three have enjoyed fine campaigns individually and, as a collective, have helped City embark on a club-record winning streak of 21 games across all competitions.
Avoiding defeat again on Sunday will mean City are unbeaten in 29 matches, another new club record, and Fernandes made no secret of wishing his compatriots were not doing so well as a team.
"I speak with them regularly, we have a good relationship, but the relationships stay out of the game. They know me and they know that on the pitch we are not friends anymore," he said with a grin.
"At the same time I enjoy seeing them play and every one of them is doing well individually and I'm happy for them. As a team I was hoping to see them do a little bit worse than they are doing, but individually I am happy for them because they are good people and they deserve to be in the positions they are and playing in the way they are playing."