Meyer took advantage when Wilfried Zaha swept in but Maddison levelled for a second time through a clinical Barnes strike.
Maddison believes he'll be in for another testing contest against Obafemi, who defeated former boxer Tony Bellew in the last 16.
“He’s obviously going to be good but I can’t imagine Tony Bellew spends a lot of time on FIFA!” Maddison joked.
“I reckon he’ll be a good opponent and another tough game.”
Day 3 matches
James Maddison (LEI) 8-1 Callum Wilson (BOU) | Report and highlights
Max Aarons (NOR) 4-1 Ryan Sessegnon (TOT) | Report and highlights
Phil Foden (MCI) 3-4 Charlie Taylor (BUR) | Report and highlights
John Egan (SHU) 4-3 Jofra Archer (MUN) | Report and highlights
James Maddison (LEI) 3-2 Max Meyer (CRY)
How to watch the tournament
Finals Day will also be shown live in the UK on Sky Sports' Premier League and Main Event channels, with the tournament again being televised around the world by the Premier League's international broadcast partners.
The tournament will urge everyone to follow official advice by staying at home and saving lives.
We would also ask anyone inspired to play FIFA 20 to take regular breaks from gaming, every 45 minutes.