Southampton boss Russell Martin says they "have a big job to do" as they "hunt" down the Championship's top two.
Saints are in fourth place, one point behind Leeds in third, after a six-game unbeaten run including four wins.
Leicester and Ipswich are 15 and 10 points ahead of Saints in the automatic promotion places, but Martin said they will keep chasing the leading sides.
"We have to keep driving and hunting the teams above us while trying to make sure we stay away from those below us."
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Only six points separate Leeds in third with Blackburn in 12th place.