Source: Team_Talk
Jackson was justified claims King
The striker marked his full league debut against Brentford at the back end of last season and looked set for a great campaign after a promising pre-season.
But King failed to make an impact in the opening day defeat to Rotherham and has not featured since the 1-0 loss to Wycombe back in August.
The Imps forward then spent time on loan at non-league Boston before marking his return with a surprise substitute appearance in Tuesday's 1-0 loss to Darlington.
King told the Lincolnshire Echo: "It's a major step up, probably a bigger step up than I thought it was going to be.
"I wasn't strong enough and lacked experience. I didn't do the business so I wasn't surprised when I was dropped."