The former Wolves man reacted badly to being substituted in the Tykes defeat.
Barnsley fans have taken to social media to condemn winger Adam Hammill after the winger was involved in an altercation with manager Paul Heckingbottom following his withdrawal in Tuesday night's defeat to Newcastle.
The 28-year-old was substituted shortly after the hosts went 2-0 down thanks to Dwight Gayle's second goal of the evening, and reports soon surfaced that the decision did not go down well with Hammill.
Bit of a spat at Oakwell...Adam Hammill subbed...Tykes boss Paul Heckingbottom marches onto the park to grab him off...furious exchange— Derek Clark (@derekclarksport) October 18, 2016
Paul Heckingbottom manager of Barnsley
Tykes supporters on social media after the match were not pleased with the winger's reaction, with some calling for him to be dropped due to a combination of his subdued performances and poor attitude.
Expect Hammill to have a week on the bench and quite rightly too.— West Stand Bogs (@WestStandBogs) October 18, 2016
When Watkins was subbed (wrongly imo) he clapped the fans and shook hands. Professional and classy. Hammill on other hand needs a shoeing— Wroey (@mswro2012) October 18, 2016
Ain't no body like Adam Hammill, throws a paddy, when he gets subbed off— Daniel Tate (@DanJGTate) October 18, 2016
I love Adam Hammill but his head's gone.— West Stand Bogs (@WestStandBogs) October 18, 2016
Hammill on bench v Brentford, Hecky wont stand for that— adam (@adam_cosgr0ve) October 18, 2016
The winger posted an apology on Instagram after the match, but whether his remorse is enough for him to retain his place in the starting XI remains to be seen.
The altercation took attention away from what had been a battling display by the hosts, who were ultimately outdone by the firepower of Gayle, who now has 11 Championship goals this season.
Dwight Gayle celebrates scoring for Newcastle
The Tykes came close on occasions through Sam Morsy and Adam Jackson, but were left reflecting on their third league defeat in a row. In fact, since a fine start to the season which saw Barnsley in the play-offs, they have now picked up just one point from their last six league matches and have slipped to 14th.
There is no need for supporters to panic just yet, however, and the majority were content with the performance their side put in against the Magpies.
If you were one of the minority having a boo then just have a word with yourself. Played well there against a class side #BarnsleyFC— Ben Lockwood (@Loko1912) October 18, 2016
Newcastle weren't 2 goals better, but we created nothing. No striker who can hold ball up. Can't fault lads for effort though. #barnsleyfc— Tom Hirst (@tom_hirst) October 18, 2016
Some team them for this level. No disgrace. Better than us all round.— West Stand Bogs (@WestStandBogs) October 18, 2016
Barnsley's Adam Jackson and Newcastle United's Mohamed Diame
Heckingbottom's side travel to the capital to face Brentford on Saturday looking to reverse their recent slide. Whether Hammill starts or takes his place on the bench, he now has work to do to win back the full support of the Oakwell faithful.