Mauricio Pochettino has expressed his frustration at being the one to shoulder the blame at Tottenham Hotspur when signings fail.

Vincent Janssen’s miserable spell at Spurs came to end on Tuesday when the Holland striker joined Mexican club C.F. Monterrey Holland striker for around £7 million, three years after his arrival from AZ Alkmaar in a £17 million deal.

Tottenham take a collaborative approach to transfers, with chairman Daniel Levy, chief scout Steve Hitchin and Pochettino all involved in the process of signing players.

Their strike rate in the transfer market has been mostly impressive during Pochettino’s five-year spell in north London but, with the manager not having the full say over recruitment, he gets frustrated when he is forced to carry the can publicly for signings that do not deliver. Janssen managed just six goals in 42 games for Tottenham.

When it was put to Pochettino that he had made a number of successful signings and was asked to rate where the South Korea forward, Son Heung Min, ranked among his best buys, Pochettino gave a pointed response.

Speaking in Shanghai ahead of Tottenham’s International Champions Cup tie against Manchester United at the Hongkou Stadium on Thursday, the Spurs manager said: “I think when you say I am very successful with signings, I think it’s not true.