Alexei Kovalev isn't good enough for the NHL anymore which is a shame as some of his greatest moments have been in Pittsburgh colours. He hasn't got the vision he used and isn't as good attacking wise as he used to be so is pretty ineffective.
can't hurt to invite him to camp, I can't imagine they would keep him, but if he is motivated he could probably play his way onto a team. he is an insane talent will be fun for the young guys to practice with him at least
The much more interesting note is the Kostitsyn tryout. Andrei has never fully lived up to his potential and has essentially only played with one team for his career (other than the brief rental period with the Preds). And that one team had one of the most intense media/fan followings in the league.
A market like Florida is so night and day to Montreal that it's an interesting storyline to follow if he should catch on.
Chances are Kovy and Svatos are both done at the big league level though.