TuttoMercatoWeb reports that Lonwijk is out of contract in the summer, and Marcelo Bielsa is one of the managers monitoring the situation. However, Eintracht Frankfurt have already made contact with the 19-year-old, and Roma are reportedly also keen on the teenager, who PSV hope to tie down to a new deal.
Lonwijk is not yet a household name as he awaits his debut for PSV's first-team, but the interest in the goalscoring attacking midfielder arguably highlights how much potential he is deemed to have.
And given the work that Leeds have done in the market over the past couple of years, it would be no surprise if the Elland Road faithful were immediately keen to see a deal done.
The Whites' under-23s include a number of extremely talented prospects, who have either got their chance in the first-team already or cannot be too far away from getting their opportunity. And many of those same players have been scouted and brought in from elsewhere.
Leeds clearly have plenty of work to do before they win the race to sign Lonwijk. But the work that their academy has done in the last couple of years and the pathway that Bielsa has forged for players to break into the first-team must give them a brilliant chance of pulling off what would appear to be a major coup.