Bruce subbed off Shelvey during the second half of Newcastle’s 0-0 draw with Brighton, with the midfielder failing to impress.
Shelvey was apparently far from impressed at having to be taken off, and reportedly showed some dissent towards his manager from the bench.
Bruce reacted by cupping his ear towards the £12 million midfielder (BBC Sport), who then continued to vent his frustrations even more loudly.
The Newcastle boss reportedly ended up the argument by shouting at his midfielder, who did eventually calm down.
However, on the pitch, things only got marginally better as the Magpies failed to pick up the three points.
Newcastle did brighten up after the introduction of Allan Saint-Maximin and Andy Carroll, but they had been second best for large portions of the match before that.
Newcastle have struggled badly for points so far this season and currently sit just marginally above the relegation zone.
The Magpies have collected just five points from their first six games, with their next match coming against Leicester City, in what looks like a tough away game.
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