Harrogate Town will host Huddersfield in a pre-season friendly at Wetherby Road on Saturday.
Braga will play Middlesbrough in a pres-season friendly at Municipal de Lagos on Friday.
Paris Saint-Germain will begin their pre-season with a friendly against Quevilly-Rouen on Friday.
Last season, Millwall came close to getting a playoff spot but eventually fell short in their quest. They finished ninth with 69 points from 46 games.
Newcastle have already signed Matt Targett, Nick Pope and Sven Botman so far in the window. It is believed that there will be further additions to their squad.
The Red Devils ran out 4-0 winners over Jurgen Klopp’s side in what was Erik ten Hag’s first match in charge of the club.
Shrewsbury Town will host Burnley in a pre-season friendly at New Meadow on Friday night.
Bournemouth will play Sheffield Wednesday in a pre-season friendly at Dean court on Friday.
After beating Luner SV and Dynamo Dresden in the first two friendly matches, Dortmund will be looking to make it three in three on Thursday.
Salford City will play Rotherham United in a pres-season friendly match at Victory Park on Wednesday.