Shackleton came on for his 22nd Leeds appearance - all of which have arrived under Marcelo Bielsa - and very nearly registered his third assist for the club, with Patrick Bamford screwing narrowly wide from his young teammate's intelligently-disguised through-pass.
It would have been the icing on the cake for Bielsa's team, who were already 3-0 up and heading back to the top of the Championship.
Yet despite the result, Shackleton's performance has not gone unnoticed.
This is what those of a Leeds persuasion are saying about the 19-year-old academy product on Twitter...
Jamie Shackleton just gets better and better by the way. #lufc— @epictrader (@epictrader) 12 March 2019
Watching Shackleton play gets me highly excited. Absolute gem— Roam Hamilton (@roamyourway) 12 March 2019
Shackleton showing why I’ve wanted him to play in the number 10 role recently #lufc— Ryan (@RPlufc93) 13 March 2019
Shackleton once again showing what an immense talent he is. Really hope he gets more minutes in midfield like tonight. #lufc— Matt (@mattlufc_) 12 March 2019
Shackleton must be due to start a game cracking player— Claire Lumley (@LUFCLummers) 12 March 2019
Don’t think Bielsa makes much to Izzy Brown. Jamie Shackleton is above him in the pecking order— Tommy Ellam (@Ellam9) 12 March 2019
Shackleton could end up better than cook— Billy McGlennon (@chuckielufc) 12 March 2019
Shackleton spent the early part of the campaign covering at right wing-back, but has found attacking midfield chances easier to come by after Samu Saiz's December exit.
The Leeds native signed a new three-year deal at Elland Road last August.
How big a role could Shackleton play for Leeds between now and the end of the season?