Martial travelled with Man United to the United States for Tour 2018 but featured in just two matches before flying to Paris to be with his partner Melanie Da Cruz as she gave birth to their first child together.
The 22-year-old is thought to be keen on departing Old Trafford this summer due to his broken down relationship with Jose Mourinho, but seemed to be in good spirits while taking part in preparations for the 2018-19 season.
United concluded the pre-season tour stateside with a 2-1 win over European champions Real Madrid on Wednesday morning and are now due to fly back to Manchester for the final leg of pre-season.
Speaking to the press after the match in Miami, Mourinho admitted he isn’t sure when, or if, Martial will rejoin the squad when they’re back in England which has worried a large amount of the fan base.
Martial is a fan favourite at Old Trafford but seems dead-set on leaving United for a new challenge, with Premier League rivals Chelsea and Bayern Munich his largest suitors.
Due to the amount of pre-season action the France international has missed, it’s unlikely that he’ll feature in the final friendly against Bayern at the Allianz Arena on Sunday and the campaign curtain-raiser against Leicester City next Friday.