Antonio Conte will look at Tottenham's performance at Chelsea on Sunday to measure their improvement in the first eight months of this year.
Spurs lost three times inside three weeks to their London rivals in January and Conte claimed his former club were 'better in every aspect' but they finished last season with a flourish and started this campaign with a resounding 4-1 win against Southampton.
'This is a really good surprise, to see the change of the team in such a short time,' said Conte.
'It's positive, it's positive for me.