Wouter Vrancken predicted that there’s more to come from his Hearts side as they won their fourth straight league game.Sabah Kerjota’s 96th-minute strike – his first goal for the club – helped Vrancken’s side move up to second in the Premiership, just three points behind leaders Celtic.Behind at the break, Hearts levelled through Claudio Braga’s penalty with six minutes remaining then sent Tynecastle wild by pinching a dramatic victory at the death.And while Vrancken wasn’t pleased with the way his team started the match on the back of winning at Easter Road on Thursday, he feels they haven’t come close to yet reaching the ceiling of their potential.’I think for sure we can make some steps and the first half wasn’t good enough,’ he stated.’But there are always excuses, the fatigue and all those things and the recovery. Sabah Kerjota races off to celebrate after scoring his stoppage-time winner at Tynecastle Hearts boss Wouter Vrancken seeks out Kerjota after his team’s 2-1 victory over Dundee Hearts forward Claudio Braga wheels away after scoring an equaliser from the penalty spot ‘We want to play a lot of big games because otherwise you don’t want to qualify for Europe.’We made it difficult for ourselves. We didn’t have to give this goal away.’But again, it’s also good to see after a setback like this that they don’t panic and that they have the resilience and the quality also to turn those things around.’You have to have it when you want to try to fight for the top spots there in the league. You need to come through those moments.’Vrancken was delighted that his players refused to lose the momentum which the midweek win in Leith had given them.’I think also the message before the game was also like when you play such a derby and you win such a derby and you lose then this weekend, you bring the focus again on the negative. You lose the emotion of the derby a bit,’ he said.’I was really happy to see that we stayed in the game and we kept pushing to get what we deserved and at the end they did it.’Vrancken admits that he’s struggling to come up with solutions to his growing injury problems in midfield.Already without Tom Renaud and Eduardo Ageu, Hearts will have to do without Blair Spittal for several months after he left Easter Road on crutches on Thursday after sustaining a shin injury.’We didn’t have any extra options, I think, now,’ said the Belgian.’We could push Osh (Oisin McEntee) forward, for example, that was also a possibility. But at half-time, he felt something and then we had to take him off. This option was also gone in the second half.’I think we’re really thin there, from my perspective. The other thing is, a guy like Ageu, of course you want to have him as soon as possible, but we cannot skip steps, we cannot rush it with him.’But yeah, okay, we have to solve it. Other guys have to step up.’On a day when he lost Joe Westley, Ryan Finnigan and Finlay Robertson to injury and Zan Besir to a late red card, Dundee boss Steven Pressley took some consolation from the fight his players put up.Westley has a suspected fractured cheekbone, Finnigan has hurt his ankle and Robertson has sustained an injury to the outside of his knee.’We’re disappointed because we came so close,’ said Pressley.’It was very hard to take and it was a really difficult game to manage with so many enforced changes.’We had also players that were trying to bed in, players that have come in that are lacking game time and physicality just now.’There were so many things to do. It was a really, really difficult game to manage.’When I consider all the things and challenges that I had, the players were faced with them on the pitch, their attitude and performance was incredible.’Not in terms of controlling the game or having periods of possession.’We know we need to improve on that, but we had great will and the desire and the determination to try and get a result.’