Gunjohnson or Saviola.
Saviola would be difficult to predict here.
Quick and skillful enough for small spaces, good finishing, but no physical presence. I don't bloody know how he'd adapt here. I never thought LG would fit in England but he did. He wouldn't be that creative one people are demanding though. I'm surprised Saviola hasn't played more over Higuain so far. I like the player but he hasn't impressed in Spain. Wouldn't mind to have him. He has skill, but he also has a legend of not being a too professional player. We'll see.
Gudjohnsen, not good enough for Barcelona, wouldn't IMHO, be a improvement over Keane, but he's less of a gamble because he adapted reasonably well in Chelsea, and both of them would be very different bets from Rafa, totally different players. I think that it would make more sense in Rafa's plans Gudjohnsen, but I'd be more calm with any of them.
Bringing one of those would leave me a bit more calm and less helpless, but it wouldn't be a swap I'd made in the middle of the season myself. I bloody hope we've got a replacement.