Pienaar at his age won't fetch much of a transfer fee so not worth selling. Would be more value in keeping him around.No-one is irreplaceable, but more often than not he's the heart of our main attacking outlet
TBH, if we're going to sell Banes, we may as well sell Pienaar as well. They bring the best out in one another, and are hugely compatible. Look at his torrid spell at Spurs, he needs Baines to get the best out of him.
We'd need to address our whole left side if we sell Bianes IMO.