Forwards might win you matches, but if you don't concede you can't lose.
And Melbourne City, having shipped four goals on their opening W-League match of the season in Perth last weekend, will be desperate to keep a clean sheet when they host Melbourne Victory in the first W-League derby of the season at AAMI Park on Friday night.
Their prospects of doing so have been boosted considerably by the return to action of Matildas goalkeeper Lydia Williams, an absentee in West Australia where a bizarre set of circumstances conspired against Patrick Kisnorbo's side as they embarked on their defence of a championship they have won for the past two seasons.
Back up goalkeeper Emily Shields was pencilled in to start, but injured her wrist in the pre-match forcing Kisnorbo to rush teenage third choice Emily Kenshole off the bench for her W-League debut.
It didn't end happily, but City will now look much more assured with Williams, the No.1 keeper in the country, back between the posts.
The club has also bolstered its goalkeeping ranks by luring former Matildas No.1 Melissa Hudson (nee Barbieri) out of retirement as an injury replacement player to cover Shields' absence.
The 37-year-old trained with her new teammates on Thursday.
She made 86 appearances for the Matildas in a 13-year-international career, captained them to an historic Asian Cup win in 2010, played at four World Cups (2003, 2007, 2011 2015) and has been named W-League goalkeeper of the year on two occasions during seven seasons in the national competition.
Kisnorbo says Hudson's leadership qualities would make her an invaluable addition to the dressing room.
The coach, in his first full season in charge of the W-League team, put last weekend's loss down as something of a "freak" occurrence.
"It was just one of those games. Four chances, four goals. We created a lot of chances, hopefully it was a freak sort of game. We will take a lot of positives out of last week.
"It was one of those things. We have to take the good things out of it and move on.
"Lydia is a great goalkeeper, but we have a great squad. We are all ready."