Henderson has joined Scottish Premiership club Ross County on loan from Celtic in the summer transfer window.
Kettlewell has given his take on the loan deal and has thrown the midfielder a challenge, and he has also said that Celtic believe that the youngster can grow at his club.
Kettlewell told BBC Sport about Henderson: “When you look at the progression of Ryan Christie, for example, who had a loan spell [at Aberdeen] then came back to Celtic and has thrived, that is one of the guys that Ewan now has to go and try and displace from his position in the team.
“You are talking about the best midfielders in the country, the guys that turn it on every single week and deliver under pressure so, it is no mean feat to go and try and do that.
“But we believe, and Celtic believe, that this will give him an opportunity to try and progress his career and try and make him a guy that really sticks out amongst their group."
Good move for Ewan Henderson
Henderson is only 19 years of age and has made a handful of appearances for the Celtic first team.
It was always going to be hard for the teenager to play for the Hoops this season, and it made sense for him to join Ross County on a loan deal.
The Staggies won promotion from the Scottish Championship at the end of last season, and there will be pressure on them not to go straight back down again.
Playing under such pressure will help Henderson develop and grow as a footballer, and he will return to Celtic at the end of his loan spell a more mature footballer.
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