So Dervitte is fit?
I suspect "rehabilitating" from his serious knee injury would be more accurate.
The club took him to that recent Italian youth tournament, and as far as I could tell he played only one or two 45-minute shifts across the three games.
http://www.tottenhamhotspur.com/news/view_archived_article.html?art_id=7001
That suggests he won't be pushing for a first-team place until the end of this season or even the beginning of next.