Leading Tite's charges will be Paris-Saint Germain trio of Thiago Silva, Marquinhos and golden boy Neymar. "He can now begin training with the ball and we expect him to participate in our [pre-World Cup] friendlies".
The biggest question mark now remains around who will replace Neymar's club team-mate Dani Alves at right back after he suffered a season-ending injury during the French Cup final.
Manchester City quartet Ederson, Danilo, Fernandinho and Gabriel Jesus are among the Premier League-based players named in the squad.
"Gremio have played at a high level for the last two years", Tite told a packed room of reporters at the Brazilian Football Confederation.
"I think it had an impact but I also know how to evaluate other points - whether they are technical, physical, emotional or tactical - to make a fair judgement", he said.
Brazil will need him showing all the skills that made him the world's most expensive footballer, with a record €222 million transfer from Barcelona to PSG last August.
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The inclusion of Taison, the coach admitted, suggested Coutinho could be taking a role in central midfield and leaving his spot for Willian.
The others are Paris Saint-Germain star Neymar, who is still recovering from a foot injury, Liverpool's Roberto Firmino and Manchester City's Gabriel Jesus. "But Roberto Firmino will fight for that position in top form", Tite said.
"Coutinho can play in the middle and in the flanks, he is versatile", Tite said.
Brazil will start its World Cup campaign against Switzerland on June 17, followed by Costa Rica and Serbia in Group E.
To cover Alves' absence on the right, Tite has called up Fagner of Corinthians and Manchester City's Danilo.