England bowler James Anderson believes he could be fit enough in time to be selected for the second Test against India next week.
Anderson, his country's leading wicket taker in the longest form of the game, missed the two-Test series in Bangladesh with a stress fracture of his right shoulder blade.
He was named in the squad for the five-match series with India, although he was always going to miss the first Test in Rajkot, which got under way on Wednesday.
Initially, there were some fears he would be unable to play any part against Virat Kohli's top ranked side, but Anderson provided a positive update ahead of the second Test at Visakhapatnam, due to commence on November 17.
"I had a good week at Loughborough last week getting some overs under my belt and hopefully I can keep that going this week and get some miles in my legs and keep wandering around and make sure I'm as fit as I possibly can be and maybe be fit for the second Test," he told Sky Sports.
"I did a good amount last week - I got 30 overs in, in the week - and this week is about carrying that on and maybe increasing the intensity a little bit. The rest is standing around, getting used to being up on my feet for seven or eight hours a day.
"It [the second Test] is still over a week away so it's hard to say right now but it all depends on how this week goes. In the next two or three days we'll have a good idea of whether that is a possibility or not.
"At first we thought maybe the fourth Test was a possibility but the way that I've progressed in the last two or three weeks has been positive.
"I feel good; I felt good last week at Loughborough in the nets and hopefully this week I can continue that and get used to the heat quite quickly.
"At the tender age of 34 I've got enough experience to get back into match-mode quite quickly; it's not always easy without having any games under your belt but I think I'm able to do that. This week will be key to see where I'm at, especially with the heat."