Saints boss Mauricio Pochettino has confirmed the Kenyan remains on his shopping list.
â€śIâ€™ve seen a lot of him and heâ€™s perfect,â€ť Watson told the Daily Echo.
â€śObviously, I heard that he couldnâ€™t agree terms, but he is the perfect player that we actually need at Southampton.
â€śHeâ€™s big, strong, wins the ball, gives it, turns defence into attack and he gets on the end of things from set pieces.
â€śHaving someone like him in the middle of the park would probably free up Morgan (Schneiderlin) to do a bit more damage in the final third.â€ť