The son of West Ham United co-owner David Sullivan has apologised to club captain Kevin Nolan for an ugly swipe.

Moments after Sam Allardyce's side conceded a late equaliser to Everton in their FA Cup third round tie on Tuesday night, Dave Sullivan took a swipe at Nolan on Twitter.

Writing to more than 7,000 followers, @DaveSulley tweeted: 'Livid how sam says zarate isn't good enough to play for west ham and yet nolan is some how'.

But after having some time to think about his actions, Sullivan returned to Twitter on Wednesday morning to issue an apology to both Nolan and his own family.

I would like to apologise on behalf of my family and myself as I do not think I have represented them fairly by my tweets yesterday — DA'VE SULLIVAN (@DaveSulley) January 7, 2015

They were a moment of madness as emotions got the better of me, I am only young but old enough to know better, there is no excuses for my — DA'VE SULLIVAN (@DaveSulley) January 7, 2015

Actions. I am also sorry to kevin nolan, who doesn't particularly deserve my comments. I hope everyone will forgive me and this sort of — DA'VE SULLIVAN (@DaveSulley) January 7, 2015

Situation will not happen again. Thank you for your understanding COYI — DA'VE SULLIVAN (@DaveSulley) January 7, 2015