David Warner, Nathan Lyon and Mitchell Starc were involved in some tense moments on day four of the first Test between Australia and South Africa in Durban.
David Warner's mouth, Nathan Lyon's manners and Mitchell Starc's menace have combined to reignite the rivalry between Australia and South Africa.
Match referee Jeff Crowe is expected to scrutinise the celebrations of Warner and Lyon, who combined to run out AB de Villiers on day four of the first cricket Test in Durban.
Lyon dislodged the bails then dropped the ball right next to de Villiers, who was disconsolate and in the dirt after unsuccessfully diving to make his ground.
Warner appeared to give both de Villiers and Aiden Markram a spray, presumably critiquing their running between the wickets after a horrible mix-up led to the former being dismissed for a duck.
ICC laws dictate that players must not use "language, actions or gestures which disparage or which could provoke an aggressive reaction from a batsman upon his/her dismissal."
Crowe is also likely to look into South African speedster Kagiso Rabada's send-off of Warner on day three, which attracted the attention of the umpires.
Warner and Lyon have no recent charges, meaning it's likely both will escape with a slap on the wrist if they are booked, while Rabada risks a two-Test ban if he is charged.
Starc sparked to life during the post-lunch session, giving recalled batsman Theunis de Bruyn an almighty spray as another war of words broke out.
Contests between Australia and South Africa are often among the most intense and heated in international cricket.
Warner and de Villiers have plenty of history. The pugnacious Australian opener was fined in 2014 for essentially accusing de Villiers of ball-tampering.
"It was quite nice today. They were very friendly compared to last time," de Villiers said after day two in Durban, when asked about the tourists' sledging.
"It gets the juices flowing. I particularly enjoy it.
"We also get stuck in and try and unsettle the batters. It's part of the game."
Proteas captain Faf du Plesiss did exactly that during Warner's second innings at Kingsmead, endlessly chattering about the visiting vice-captain's "ego".
Warner has been loud and lively throughout the match. He taunted de Villiers on day two about his struggles to convert half-centuries into hundreds at Test level.
'We're all grown men. We'll compete hard, we know where the line is," Lyon said last week.
"It's a mental game as well as a physical game.
"I know when I go out to bat I get a warm welcome from most of them, it's part of the game."