The midfielder attended the Madrid Open with teammates Marc Cucurella and Joao Pedro, where he was seen greeting Real Madrid star Jude Bellingham, sparking transfer speculation.
Fernandez travelled to Spain during a three-day break granted to the squad.
Despite the attention, McFarlane insisted there was no issue with the trip and defended his players’ choice to spend their time off together, downplaying any suggestions it could impact team focus or future plans.
"We gave the lads three days off and I think it says a lot about the group that they go away together," McFarlane said.
"I love the fact that they spend time together and they've gone to Madrid to watch tennis, so I don't see an issue with it, honestly.
"He was there last year with his team-mates again. The last time they had a break, they spent time together as well, so I think it's a positive sign for the unity within the group."