Pochettino has explained why Tottenham have signed the Netherlands international.
“Vincent is still very young and his potential is massive to develop,” the Tottenham head coach told the club’s official website. “He has a profile that fits perfectly for us.
“He has quality in the box and he’s a striker that likes to fight and work for the team. That is perfect for us.
“We are very happy and excited that he has joined us. His human profile is perfect for the team, we always care about that. In general, he’s a player that fits the team.”
Janssen is a talented young striker, and he has arrived at Tottenham with a strong reputation.
The Netherlands international scored 27 goals and created 56 chances in 34 Eredivisie matches for AZ during the 2015-16 season.
The 22-year-old had a pass accuracy of 73% and a shot accuracy of 55%, and won 21 headers, 35 dribbles and 21 tackles.
Tottenham finished third in the Premier League last season and will be determined to win the league title during the 2016-17 campaign.
The North London outfit will also be aiming to progress past the group stage in the Champions League next season.