The teams from Ghana and Republic of Benin also joined Nigerian athletes at the trials held at the Samuel Ogbemudia Stadium in Benin.
The victory for Nigeria came barely a few weeks after they claimed the WAFU B Under-20 Championship.
They are two-time African champions, having won the then African Beach Soccer Championship in 2007 and 2009, and were runners-up in 2010.
The competition is scheduled for Morocco from July 2 to July 23.
Phillips is to replace Brazilian midfielder Fernandinho, who left the club after nine years.
Rooney is leaving troubled Derby County, who relegated to League One last season, one year to the end of his contract.
The Flamingos will have a great reintegration party as they confront Germany at 8:00 p.m. India time on October 11.
Last November, there were reports linking the Frenchman United job after Ole Gunnar Solskjaer was fired.
The 2022 Africa Women Cup of Nations will be the 14th edition and is scheduled to be held in Morocco from July 2 to 23.
The Super Eagles garnered 1,504.7 points in the month under review.
