The duo's new Parlophone-issued album Yes is presently around 1,200 units ahead of Keating's Polydor release Songs For My Mother, according to early retail reports, but the story is made more complicated by the PSB album having accidentally ended up on iTunes three days early last week.
It is understood around 2,500 sales of the album achieved on the Apple site following its premature release there last Friday will not count towards this coming week's chart as they will be recognised as sales from last week instead.
Pet Shop Boys, who won the outstanding contribution award at this year's Brits, have only topped the albums chart once before. Very reached number one in October 1993.
With her latest single Not Fair set to move into the Top 20 of the singles chart this week, Lily Allen's album It's Not Me, It's You is expected to return to the artist albums Top 10 this coming Sunday. Prodigy's album Invaders Must Die, released on their Take Me To The Hospital label through Cooking Vinyl, is also vying for a Top 10 return.
Outside the 10, Royksopp's new Wall of Sound album Junior will lead a clutch of new entries that will also include releases from Warner Bros's Mastodon, Interscope/Polydor's Papa Roach, Rough Trade's Decemberists and Interscope/Mosley/Polydor's Chris Cornell. Seventeen years after it first charted, Pearl Jam's Ten is set to return to the Top 40 for Columbia in an enhanced version.
On the singles chart Interscope/Polydor's Lady GaGa will again face its main challenge from Atlantic's Flo Rida track Right Round for the number one position. Vertigo/Mercury's Noisettes are expected to be the chart's highest new entry with Don't Upset The Rhythm (Go Baby Go) targeting a top five debut, while the Interscope/Polydor release Jai Ho (You Are My Destiny) by AR Rahman featuring the Pussycat Dolls is likely to leap into the Top 10 from its present chart position of 20.