The 28-year-old Colombian has been in prolific form this season and scored twice for Sevilla during the Europa League final on Wednesday night. Ferguson was there to see it.
Indeed, the ex-United boss attended the showpiece event in Warsaw and, despite no longer being involved in first-team affairs at Old Trafford, Ferguson is no doubt still involved with the club - even if just off the record.
Of course, there may be nothing in Ferguson simply enjoying one of Europe's biggest games as a privileged spectator. That's probably the case.
But, if Ferguson watched Bacca and thought he was good enough for Manchester United, a word in the right person's ear from him would surely go a long way. Both United and Liverpool will need a goalscorer next season, with Robin van Persie off form this season and the Reds sorely lacking in the final third.
Bacca has also been linked with Tottenham, meanwhile, but - if the Sevilla striker is to leave this summer - could Manchester United trump both Spurs and Liverpool thanks to their ability to finish in the top four?