Ronny Deila believes Celtic's 3-1 win over Hearts on Saturday sends the Bhoys into Tuesday night's match at Dundee high on confidence.
Although Hearts took a shock lead at Paradise with five minutes on the clock, Gary Mackay-Steven soon restored parity by striking in the 15th minute.
Loanee Patrick Roberts made it 2-1 in the 35th minute, while his 49th minute strike then killed off the visitors, setting Celtic up for a 3-1 win on home turf.
With Aberdeen also winning this weekend the gap between Celtic and the Dons is still just four points, meaning the Bhoys' game in hand on their nearest challengers, which comes this Tuesday away at Dundee, is crucial.
And Deila feels the win against Hearts puts his men in a good place ahead of their trip to Dens Park.
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"It’s a strong position and the position gets stronger and stronger if we keep on winning", he told his club's official site.
"This was a big, big win for us.
"It was a tough game, good opponents and it gives us a lot of confidence going into Tuesday’s game", the Norwegian added.
Dundee currently sit in sixth spot in the Scottish Premiership.
