The Frenchman initially wore it at Old Trafford, following his move from Monaco, but switched to no.11 when Zlatan Ibrahimovic arrived at the club from Paris Saint-Germain in 2016.
His return to his old number tallies with the more central role he has been filling during some of the pre-season campaign under Ole Gunnar Solskjaer, even if we have been fielding a fluid attacking line-up.
He signed a new long-term contract with the Reds at the end of January, and scored against Leeds United and Tottenham during Tour 2019.
The other two players to have reverted back to previous shirt numbers are Paul Scholes and Antonio Valencia.