The Germany forward was not in the starting XI for Cologne's last two matches due to a flu virus and, in his absence, the team picked up their first four points of the season.
However, his goal against Austria and stirring performance against Poland make it hard for Solbakken to leave him out again, even if Milivoje Novakovic, Mato Jajalo and Slawomir Peszko got on so well together in the 4-3 win over Hamburg a fortnight ago.
"I have a difficult decision to make up front," admitted Solbakken. "Four players are in good form.
"All of my forward players are available and all my players want to be in the starting XI, and that is the right attitude."
Nurnberg coach Dieter Hecking admitted that not only Cologne's attackers are dangerous, but their whole team.
"Cologne often play with a very advanced back four," he said.
"They did not let Hamburg create many chances and they were always quick on the counter attack, and of course they have some good individuals among their ranks.
"However, our goal has got to be to win in Cologne. We just need to find the right way of doing it."
Hecking needs to find a replacement for the suspended Albert Bunjako while regular number one goalkeeper Raphael Schafer is still out after undergoing surgery on a shin.
Patrick Rakovsky is also unavailable due to a fractured finger and Timothy Chandler is a doubt, meaning Hecking is struggling to find 18 players for his matchday squad.