England coach Andy Flower is confident Stuart Broad and Graeme Swann will be fit for next week's first Ashes Test against Australia.
Flower revealed Broad had a cortisone injection in the right shoulder which ruled him out of the 228-run win over Essex, and bowled on the edge of the square with the rested James Anderson at lunchtime on Wednesday.
Swann was hit on his bowling arm while batting against Tymal Mill during England's first innings, but returned to take 5-68 - back-up seamer Graham Onions joining in with 4-43 - as Essex collapsed in their second innings.
"There were great concerns about Swann," said Flower. "We thought he might have cracked his ulna.
"Luckily it wasn't the case, but it was badly swollen - not only when he was batting but afterwards.
"For a couple of hours, we thought he might have been missing (from the start of the Ashes) - which would have been a serious blow - but it would have given someone else a better chance."
Swann recovered sufficiently to bowl the next day and then again, for longer and with more rewards, when Essex's second-innings chase of a notional 415 faltered to 186 all out.
"It was important for him to get those overs done," added Flower. "It was nice to see him bowl with that sort of quality."
Swann himself confirmed post-match that he was in good health.
"I did feel I needed a long bowl in the middle," he said. "Having not played much in the Champions Trophy, and then missing out on the first innings here after getting whacked on the arm, I was very keen to get at least 20 overs under my belt.
"Thankfully I managed to do that today, and to pick up a few wickets is always nice. The more you do something, the better you get at it.
"With the first Test at Trent Bridge next week, it was important I felt good about my game - and I do at the minute."