The pundit has asked why Tottenham Hotspur signed the full-back if they don't plan to utilise him.
And Keown also suggested a reason for a lack of net spending by the White Hart Lane outfit: the construction of their new stadium.
The former Arsenal centre-back said during a 'Tackle Keown' session on the Daily Mail website: "Kieran Trippier is a player I thought was worth taking after Burnley went down but he’s yet to feature, so it’s been a bit of a strange move so far.
"They brought in Clinton Njie and Heung-Min Son, who can both play a forward role, but because of their failure to land Saido Berahino I still feel they are a striker light. But with the new stadium underway, Tottenham have had to start living within their means more - they’ve got big bills to pay."
Judging by the feedback so far this season, there are plenty of Spurs fans who would actually agree with Keown.
As a signing, Trippier made a lot of sense for Tottenham in terms of strengthening at right-back - especially now that they have loaned out DeAndre Yedlin. But buying the 24-year-old not to play him would never really make sense.
There have already been opportunities to replace Kyle Walker after poor games but, as ever, Mauricio Pochettino has seemed reluctant to adapt.
Trippier may well get his chance but only if the Tottenham coach is willing to use him. As Walker is only a year older than him, the full-back can't really be argued to be one for the future. So far, then, it has been 'a bit strange.' Let's see if Trippier can change that with a run in the first team.