Frank confirmed Dominic Solanke will have "minor surgery" on an ankle issue that has been bothering him "for a little while", but the striker is not expected to be out for long and he will know more about a timeframe for his return after the international break.
He added that the club are "finally on top" of Randal Kolo Muani's dead leg so there is "good progress" and captain Cristian Romero not travelling with the squad is just a "precaution".
Asked about creativity in the final third, Frank said: "It's steps forward. Last year it was [Dejan] Kulusevski, [James] Maddison, Son [Heung-min] and Solanke as a front four. Now we have pretty much a new front four and they are doing very well. They are gelling more and more together and we try to give them the best tactics and principles."
On returning to Norway after beating Bodo in last season's Europa League semi-finals: "I've looked at that game, of course, but I've also looked at a lot of other games of Bodo. They're a fantastic team and their club is fantastic. Their story is unique in many ways. I'm pretty sure the whole of Europe knows about Bodo, because I think it's a little bit of a fairytale. I like that Scandinavian link between Denmark and Norway."
More on Tuesday's opponents: "I follow them a little bit, maybe a tiny bit closer, and the background, to see how they have built that club - aligning strategy, structure, hard work over years. What Kjetil Knutsen and his staff have done is remarkable. Their style of play is quite unique in many ways. Extremely well coached team. Big praise - I admire them a lot."
Frank opted to train at Hotspur Way rather than on Bodo's artificial pitch: "If we have training here [Norway] and we want to do a little bit of tactical [work], it would be a little bit more obvious what we would do. I know the surface is different. If you really want to get used to it you need to train here day in, day out as Bodo do. We are ready for that challenge but, for me, it was the tactical reason."