Rushie feels the sky's the limit for the England striker.
"It's not just the goals Daniel gives you but all the other parts of his game," Rush told the Liverpool Echo .
"His movement and his close control is different class. He can come short and link with teammates and he has that burst of pace to get in behind defenders too.
"When it comes to shooting, he can generate great power with very little back-lift. We have missed him. We can't rely on him all the time because there will be times when he's not available, but there's no doubt Liverpool are a better side with Daniel."
For the big stories and the banter follow us on Twitter: @tribalfootball