The pair were impressive in defeat to friendly opponents Valencia.
â€śI thought we were building up a better understanding towards the end of last season,â€ť Walker told the Spurs website.
â€śItâ€™s difficult, because I always want to get forward and thatâ€™s obviously Azzaâ€™s strength as well.
â€śWeâ€™re understanding each other a lot better, not taking it in turns to go forward, but knowing when to go and who is better to go. Itâ€™s all positive.â€ť