Perth - Western Force flank David Pocock says he has no hard feelings against Jannie du Plessis despite the Sharks prop allegedly threatening to break his neck.

Pocock limped off Perth's NIB Stadium early in the Force's 39-12 loss to the Sharks on Saturday after he became involved in a messy ruck.

After Pocock ripped the ball from Sharks hooker Bismarck du Plessis, his brother Jannie grabbed the backrower by the head and pulled him backwards into an awkward position.

Pocock was cleared of a serious knee injury but will spend four-to-six weeks on the sidelines with a medial ligament strain.

Hours after the match the 2010 John Eales Medal-winner accused du Plessis of threatening to break his neck after the ruck had cleared and he was on the ground in pain.

Responding to the incident on Twitter, Pocock quoted du Plessis as telling him: "Next time, I'll break your f---in neck".

"Jannie du Plessis, Sharks prop and all-round nice. Haha, what a good bloke...", Pocock tweeted on Sunday.

But on Wednesday it seemed Pocock had made amends with the Springbok forward and there was no animosity between the pair.

"Got a call from Jannie du Plessis on Tuesday night - ended up having a good chat, no hard feelings, all sorted. Good luck to the Sharks vs the Rebels," he said on Twitter on Wednesday.

A spokesperson for SANZAR said the Force had not made a complaint in relation to the incident and therefore would not be launching an inquiry into the matter.

Earlier in the week Sharks coach John Plumtree said he was disappointed by the way the Force had played during the game which included a red card to centre Rory Sidey in the 18th minute for a dangerous, lifting tackle.

"We're disappointed that the Force looked like they came out to give us a physical hard time," Plumtree said on Monday.

"They had talked about a physical battle all through the week and clearly they got over-emotional in some of the collisions."

The Force will line-up against the Blues in Perth on Saturday.