Magpies are 19th in the Premier League table with six games left to play

The Holland international is reported to have punched a wall

He came off with suspected groin injury and was very frustrated

Defender Daryl Janmaat was substituted in 40th minute of 3-1 defeat

Newcastle's relegation fears were compounded after loss to Southampton

Daryl Janmaat took his anger out on a dressing room wall during Newcastle United's dire defeat by Southampton on Saturday in an incident that is believed to have left him with two broken fingers.

The 26-year-old left St Mary's Stadium with his arm in a sling after punching a wall at half-time.

Janmaat was substituted in the 40th minute against Southampton after suffering a groin injury and tensions were high inside the away team's dressing room during the break.

Newcastle defender Daryl Janmaat is said to have punched a wall during his side's 3-1 defeat by Southampton

The defeat on the south coast leaves Newcastle in serious danger of suffering Premier League relegation

Newcastle are 19th in the Premier League table

Newcastle found themselves 2-0 down after 45 minutes and their players did not hold back in letting their feelings known to one another.

It is believed some of their stars' commitment levels were questioned before they went on to lose 3-1. The loss left Rafa Benitez's Newcastle second bottom in the Barclays Premier League.

The North East club are assessing Janmaat's groin problem but it is understood that the injury to his hand would not rule him out against Swansea City this weekend.

Newcastle did not respond to Sportsmail's request for comment.

Newcastle midfielder Siem de Jong (right) competes for the ball with Southampton's Jay Rodriguez