Manchester United and West Ham can't seem to stay out of each other's way at the moment.
After drawing an FA Cup quarter-final 1-1 at Old Trafford, the two teams must play a replay in the last ever FA Cup game at Upton Park, and the Hammers also host them late in the season on May 10 in the Premier League.
Wins could be significant for both teams, and for West Ham to get one over on the 2012/13 champions would be highly impressive if they knock them out of the cup or finish higher in the league.
Yet there would be even more shockwaves felt if in the summer the Hammers were able to beat Manchester United to Europe's most in demand young winger Ousmane Dembele.
The Mail reported this week that Manchester United are prioritising the signing of the Rennes wonderkid, but were joined in scouting him at the weekend by representatives from the Hammers.
With Barcelona also interested and reportedly valuing him at £27 million, West Ham pulling off a deal to sign the 18-year-old would send shockwaves around Europe.
The type of moves which previously would have seemed fanciful, can be treated as possible with the club so close to Champions League qualification.
Finishing in the top four would boost the funds available to the Hammers, while even a near miss would boost their profile and be further evidence they are moving in the right direction ahead of their move to the Olympic Stadium next season, which is a selling point in itself.
Wins over Manchester United may help enable more success, but signing an outstanding talent like Dembele ahead of them would be their biggest victory of all.