It's a great achievement for a 29-year-old to play 100 Tests.
Stuart Broad's 400th Test wicket did not come the way he would have wanted - Tom Latham chipped the ball to mid-wicket - but he will take it nonetheless. It is a fantastic achievement.
Although it's a brilliant achievement, 100 centuries doesn't mean anything to me.
I thought I could have breached Brian Lara's 400 runs. When I scored 319, I was unbeaten at 309 but then got out. So I think I could have reached that mark, but unfortunately, I missed it.
Lord's is such a special place and to get my first and now my 500th wickets here is something that will live with me for a long time.
200 for a batsman is a big landmark, and I have never been somebody who has chased landmarks, but getting a 200 will always be a proud moment for a batsman.
It's a huge honour to play my 100th Test, and I never in my life thought I'll be in this kind of position.
I have one regret that whenever I look at the list of world's leading scorers, I don't see any Pakistani who has scored 10,000 Test runs; even I couldn't do it, nor Muhammad Yousuf.