Chennai Super Kings head coach Stephen Fleming admitted that seamer Deepak Chahar's latest injury "doesn't look good" but he is hoping for a positive report from the franchise's medical team ahead of the business phase of the ongoing IPL.

Although Fleming did not divulge any details on Chahar's new injury, the 31-year-old seamer was seen pulling off his run-up in just the second ball of Punjab Kings chase here on Wednesday night.

It could be a possible hamstring injury as, after having a chat with skipper Ruturaj Gaikwad and the physio, Chahar walked off ground holding his hamstring and did not bowl any further in the match.

Chahar's career has been marred by injuries in the last couple of years, costing him a permanent spot in the Indian team.

"Yeah, the travelogue is pretty busy. There's a lot of ins and outs. So, Deepak Chahar doesn't look good," said Fleming during the post-match presser.

"The initial feeling wasn't great. So, I'm hoping for a more positive report when the physio and the doctor have a look."

Chahar's injury somewhat forced Gaikwad to bring in Shivam Dube for an over, who has mainly been used as a batter this season.

But Dube went for 14 in the only over he bowled, and Fleming admitted that with the Impact Player rule, Dube is not suited for the role in the IPL and will have his chances in proper conditions.

"He (Dube) is ready to bowl and is working hard on it. He will play a role in the right conditions, and with the Impact Player rule, we have players who can fit the role better. Currently, his necessity to bowl is pretty much small," the coach said.

CSK suffered a seven-wicket defeat to PBKS, their second loss at home this season, managing a meagre 162 for 7, which was comfortably chased down with 13 balls to spare.

Talking about the demanding wicket at Chepauk, Fleming said, "It's difficult, and we have spoken on the unpredictability of the wickets here before. Batting first makes it difficult for us to judge as to what a good competitive score is.

"We had a couple of 200s (before), which was in our minds today. But, the wicket was very sticky.

"We also had a good start in the (first) six overs before things became difficult. We also tried a few lefties in the form of Dube and (Ravindra) Jadeja but we just couldn't get anything through the middle. They bowled really well, they got good purchase and held onto it. We just got stifled through the middle, which prevented us from getting a score of 180," he said.

With a low score to defend, Fleming was impressed with the commitment and performance shown by English pacer Richard Gleeson, who made his debut last night.

"Richard Gleeson was good, and it was a positive. Losing Fizz (Mustafizur Rahman) is disappointing.

"Tushar (Deshpande) has a bit of flu going around as well. So, we've had to make a few changes, which is unusual. Again, that's part of it, and we have got the resources," he said.

"Just they haven't had the game time to be really comfortable with their roles and us to be comfortable with a game plan, which we're struggling a little."

Although veteran opener Ajinkya Rahane managed to get to double figures after a lean phase in the last four games, he didn't last beyond a 24-ball 29.

"I thought he (Rahane) was good today. He's been probably a bit too aggressive in what he wants to do," Fleming observed.

"Keep in mind, we're batting on wickets here that we don't know how they are gonna play. So, we got to take a bit of a pause to see what a good score is. If you are 3 for 30, the game is pretty much over.

"His (Rahane) hitting that was so good last year, is more crisp. It's not for lack of intent. He has doubled up on intent. We're fine with Jinks and the role he plays."