According to the Southend Echo, Kelman was the subject of two six-figure deadline day bids from the Black Cats and Premier League side Tottenham Hotspur.
But both bids were knocked-back by Southend, who were keen to retain the services of the talented 18-year-old.
There were few complaints for Kelman, though, who is focused purely on helping lift Sol Campbell’s side away from relegation danger in the third tier.
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“Having interest is nice but that’s not my concern,” said the striker, speaking to the Southend Echo.
“My concern is to finish the season with as many goals as I can and hopefully we can catch the teams above us.
“I also want to repay the faith of the manager, the staff and the fans.”