AFC Wimbledon boss Terry Brown believes scoring goals is his side's Achilles heel - despite the Dons defence shipping nine goals in their past four matches.

The Dons went down 4-2 at home to fellow play-off contenders Horsham on Saturday.

Brown's men are yet to secure a place in the Ryman Premier Division top five and have stumbled since a 3-2 defeat to leaders Chelmsford City ended hopes of winning the title.

But the busy Dons boss has boosted his squad with five signings this week - including three strikers he hopes will fire them to glory Gillingham forward Luis Cumbers re-signed on loan after the Gills drafted in two front men last week, while Brown added four more players on Monday - transfer deadline day.

Right-back Ben Judge has joined from Bromley, while QPR trainee midfielder Danny Maguire has signed until the end of the season.

Stevenage Borough striker Elliott Buchanan comes in on loan - as does forward Nic McDonnell on a dual registration deal with Bromley - as cover for Jon Main, should he fail to recover in time from injury.

But former Aldershot Town boss Brown, who has seen his side leak six goals in the last 15 minutes in three of their past four matches, concedes his defence needs attention as well if they are to clinch promotion.

"We have had a good defence all season, but we've not been able to score goals," he said.

"It is up to me and the coaching staff to address the problem and we will be working hard on the training ground to iron out the problems at the back.

"We were going well up to the point we lost to Chelmsford and I think that has taken the stuffing out of us.

"A few fresh faces could lift the squad at the right time."

Wycombe Wanderers centre back Lewis Christon, signed last week on-loan until the end of the season to provide some pace at the back, couldn't stop the Dons leaking another four goals at the weekend.

Strikes from Daniel Webb and Chris Hussey had seen the teams level until Horsham scored twice late on.

And Brown insists his side cannot afford a repeat this weekend with the visit of Billericay Town.

"We are playing another play-off chasing side and we can't afford another slip," he added.

"We need to make sure we are in the play-offs so we have time to approach them in the right frame of mind and playing good positive football.

"The fact Lewis will have another game under his belt can only be a good thing and we hope to have one or two other boys back.

"I'm trying to get a settled side as soon as I can, so it has plenty of time to bed in."