"I know the expectations are higher than last season, but I always look to be realistic", said Koeman. We have spent money but everyone is spending money and looking for the best players.
Signed for £13m four years ago, speculation surrounds his future with strong competition for places in the Everton midfield.
He has been likened to the legendary Spanish striker David Villa for his never say die attitude as well as his predatory instincts in the box and if the last season was any indication, the striker is definitely set to win over the hearts of millions of Everton fans worldwide.
While the Irishman has returned to training after missing out on the last pre-season game against Sevilla due to a knee knock, he's being left out of Saturday's matchday squad as a precautionary measure.
Huddersfield made a dream start to its first Premier League season by winning 3-0 at Crystal Palace on Saturday. "Then I believe we can fight against them".
"Wayne is back and he is showing his quality to the players", the Blues boss told evertontv.
"To replace Lukaku is really hard".
"A lot of cleverness on the pitch and a great goal and a great header".
His goal obviously arrived courtesy of a run from deep but Everton need to play with more of a genuine threat in the final third, given Sandro Ramirez is the only other attacking option.
Rooney had already played twice for Everton since his sentimental return to Goodison Park, but didn't score in either of the Europa League qualifying matches.
"It's not an easy fixture under any circumstances".
First things first though, Koeman's team at least get to start the Premier League season in front of a packed Goodison Park crowd.
"It's his boyhood club, so clearly there's going to be a lot of emotion and around the game". "All being well, he should be with us today (Friday) at some point and hopefully we will get that done".