The ball goes just wide from Giovanni Montemauri's attempt.

That could prove significant if Ulster manage to score with just over 15 minutes to go...

Zebre get the penalty but play advantage.

The referee has brought it back and the visitors point towards the posts.

Ulster starting to click in attack.

Ben Carson combines well with Dave McCann before the ball is sent back inside and is carried in midfield by John Andrew.

However, progress is halted as they concede a penalty for holding on to the ball in the ruck.

Zebre under massive pressure at the scrum now and Ulster manage to kick the ball clear.

The return kick from the visitors goes out on the halfway line and Ulster have the lineout.

Out-half Jake Flannery comes on for Jack Murphy.

Tries coming thick and fast now - here's Zebre's second as Giacomo de Re cuts a lovely line to tear through the Ulster defence.

Here's how Zebre scored the game's first try in Belfast as Bautista Stavile Bravin crossed the whitewash after returning from the sin bin.

Ulster have a tap-and-go penalty close to Zebre's line but the Italian side's defence is holding strong.

The hosts are inches away...

Ulster kick a penalty into touch deep in Zebre's half.

They will need to make this spell of territory count if they hope to gain a foothold in the game.

Ulster carrying close to the Zebre line but can they make it over?

Tony McWhirter
1999 Ulster European Cup winner on BBC NI

Richie Murphy will be looking for Alan O'Connor to give some purpose and direction to this Ulster pack because at the minute they're second best.

The Zebre pack has been magnificent. The Ulster scrum has creaked but Zebre's line-out play has been as good as anything we've seen all year.

Ulster under a lot of pressure at the scrum and they struggle to get the ball away.

The kick clear doesn't get much distance and Zebre have the lineout.

John Cooney with a box-kick into the arms of fullback Giacomo da Re who surges forward.

A couple of missed tackles looks worrying for Ulster, but a knock-on from Zebre lets them off the hook.

Scrum to Ulster deep in their own half.

Ulster's attack looks promising as they swing the ball wide.

However, the ball is fumbled forward by Mike Lowry and it's a Zebre scrum.

Frustrating for the hosts.

We're back here in Belfast for what promises to be an interesting second half.

Ulster attacking just inside Zebre's half.

Tommy Bowe
Former Ireland winger on BBC NI

Ulster really put a big push on to try and encourage as many young people to come and watch today. The weather hasn't helped, but certainly that first-half wouldn't encourage many to come back.

It's been pretty hard to watch.

From an Ulster perspective, they've had numerous opportunities, 60/65% possession, but they've kicked it away, they've dropped the ball.

Richie Murphy needs to have a stern word with his team at half-time.

Chris Henry
Former Ulster & Ireland flanker on BBC NI

It's very frustrating for everyone watching that.

There's been chances but a lack of patience to hold onto the ball in bad weather.

The conditions have played their part but Zebre certainly managed it a lot better in the first 40 minutes.

Tony McWhirter
1999 Ulster European Cup winner on BBC NI

There's been some nice stuff. [Ulster] have been on the Zebre line a few times but they've coughed ball up.

They just haven't shown the belief to hold on, go through the phases and let it develop in front of them.

You've got to give huge credit to Zebre. Their scrum and line-out are both on top. They're winning the battle of the kicking game and they've pinned Ulster back.

Ulster will be massively disappointed. 3-0 down and it's not what they expected.