Earlier in the week digital prices for PlayStation 4 were revealed, with EA's launch lineup pegged at a staggering £62.99. Yesterday those prices were knocked down to £59.99, but it seems that EA wasn't done with their price cuts. Now FIFA 14 and Battlefield 4 are priced at £54.99 on PSN - just as they are on Xbox One's digital store.
Earlier today various outlets were reporting that digital prices on PSN are subject to change before the online store goes live, so these new numbers may not reflect the final pricing. Best just wait until the consoles launch, then we'll know for sure one way or another.