Sherwood claims Spurs still have not lost faith.
"We signed him for the long-term and we are sure that in the end he will come good for Tottenham and be a crowd favourite here," said Sherwood, who confirmed Lamela will stay in London for his treatment and recovery work.
"It is difficult to adapt to a different country, a different league and a different language but when you are suffering these niggles - and it's something more than minor at the moment - it is disappointing for the lad.
"We are all big fans of him when we see him in training, it is difficult to adjust to a different style of play and a different language, I'm sure Erik will pick it up and by the time he's fit he will be fluent."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball