"The performance was really, really good... You can't control a game away from home much more than that," said Potter.
The Sussexes and baby Archie spent the recent Christmas holidays in Canada with Meghan's mother, Doria Ragland.
City have yet to beat the Spanish side with two draws and two defeats in their previous four meetings.
The couple feel that they can win these court cases on the basis that they do have a right to a private life.
Another side who were fourth on Christmas Day, it was 2003-04 for Saints, but they have been down since. Formed into a solid Premier League side who developed then sold academy players under Pohcettino, they are flirting with relegation this season.
"The relationship between me and him - the relationship between him and all the Manchester United squad - was more like father and son," Dong said in Chinese, although he speaks and understands basic English.
France forward Mbappe took his league tally to nine in 11 appearances as his side took advantage of second-placed Marseille only drawing at Metz on Saturday to move seven points clear and tighten their grip on the French championship, which they have won six out of the last seven seasons.
Dong arrived in Manchester as a teenager without a word of English and stayed with a host family, using hand signals to communicate. He remains in contact with them.
The Duke and Duchess have long had a fraught relationship with sections of the British media. In October last year, the couple announced that Meghan was suing the Mail on Sunday newspaper, alleging it had illegally published a private letter to her father -- a claim the newspaper denies.
"We know they are not going to make it easy."
Neal Maupay fired the visitors into a 54th-minute lead but Palace star Zaha drew the Eagles level against the Seagulls with a fine solo effort 15 minutes from time at Selhurst Park.