Rogers struck in last night's 3-2 Europa League win against RB Salzburg, which sees Villa finish second in the group phase table.
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Emery has won the title four times and Rogers said: "He knows how to navigate a competition, especially this one.
"Having him in our corner, guiding us through it, is massive.
“Ultimately, it comes down to us — how we apply ourselves and how we approach each game.
"There are so many good teams in the competition, so it's all about taking each game as it comes and being at our best."