Poll: Who will make a bigger impact for Celtic this season?
![Patrick Roberts, right, and Stuart Armstrong look like they'll both be Celtic players for the 2017/18 season. Picture: SNS](https://www.scotsman.com/webimg/legacy_elm_58368697.jpg?crop=3:2,smart&width=640&quality=65&enable=upscale)
![Patrick Roberts, right, and Stuart Armstrong look like they'll both be Celtic players for the 2017/18 season. Picture: SNS](/img/placeholder.png)
Celtic appear to have completed two major signings in the space of one day. First Stuart Armstrong put pen to paper on a new contract, then the club reportedly agreed a deal to re-sign Patrick Roberts on loan from Manchester City.
Both represent tremendous business for the Parkhead club, but which player do you believe will have the bigger impact next season?