Pompey fans in the UK and around the world can watch the latest match live on iFollow.
John Mousinho's men will look to book their spot in the Bristol Street Motors Trophy knockout stages when they visit Leyton Orient this evening (7pm kick-off).
Around 1,000 away fans are making their way to Brisbane Road, but there is no need to worry if you cannot make it.
An iFollow match pass includes graphics and replays and is complemented by commentary from BBC Radio Solent's Andy Moon and Guy Whittingham.
All this is available for just £10 (or local equivalent), so click here to secure your match pass and make sure you don’t miss a minute of the contest.