If you were watching today's FC Barcelona-Real Madrid match, you were one of millions and millions around the world, and while we didn't get the goal-fest we were hoping for, the match's lone goal was a worthy winner for any match.
Zlatan Ibrahimovic came on as a second-half sub and wasted little time making an impact. His beautiful left-footed volley gave Barcelona a lead it never relinquished.
Here is the goal:
What did you think of Ibrahimovic's goal? Impressed with Barcelona's performance? Did you already circle your calendar for the rematch in Madrid?
Share your thoughts below.
RE:(SBI-He was onside.)
No. He was not called offside. There’s a difference.
Are you saying he appears even in the video at 40″ – where the replay pauses – or are you sticking to “tangent function be damned – camera angles make his upper body look a foot offside, but he’s really even”? Basically… What I am asking is, at 40″ seconds, do you see that Ibra’s upper body and head are beyond (to the left) of Pepe’s body and head?
Don’t forget that at that pause, the ball has yet to be delivered.
SBI: I see a head and shoulders behind, and you don’t. That’s cool.
What’s not cool is saying that he appears behind because of camera angles. The numbers prove you wrong. Parallax doesn’t matter in this case for more than an inch or two. Ergo, any part of Ibra’s body (excluding arms, because they do not matter for offside) that appears beyond Pepe’s is very likely actually beyond it. Whether you see anything beyond or not is up to you, but you cannot, under these circumstances, claim that Ibra only “appears” to be beyond Pepe because of camera angle. The math of skinny right triangles doesn’t support that assertion.
(SBI-He was onside.)
Ives:
Don’t sell yourself as well! C’mon man . . . we need a voice and your on(the in)side. Come on! His whole left arm is offside (that’s advantage enough–if you want to be technical about it). Stay loyal to the game.
(SBI-According to the laws of the game, only a part of the body a player can use to touch the ball can be offside, so his arm can’t be offside.)
Looked offside to me. Great volley though
Correction:
“Pepe’s triangle is will be used as reference, since he is the backdrop against which Ibra will be measured (both in game and in the analysis). It is 1:41 A:O with a alpha (the angle at the player) of 1.39 degrees.”
Last sentence of this ‘graph should be “It is 1:41 O:A with a alpha (the angle at the player) of 1.39 degrees.”
Adjacent is the long leg, opposite is the short leg.
Look at 40″, Ives. There’s a grass line on the pitch, and Ibra has crossed it with his head and L shoulder. No one else has. The camera is not as far up field as you are claiming. The mowing lines on the field are six yards each, and the camera is somewhere to the left of the middle of the swath right in front of it. Let’s say it’s two yards up, which puts it a yard in front of the offside line.
[trig]
Furthermore, the geometry of right triangles doesn’t work to induce the amount of parallax at these distances that you’re ascribing to it.
Let’s do the math, with your assumption that they are even:
There are two triangles here. The angles of the these triangles we’re interested in are at the players in question. The adjacent leg is the distance from the players to the distance the camera is off the field. This changes for each player. The opposite leg is common to both triangles. It is the distance the camera is upfield from the players.
Pepe’s triangle is will be used as reference, since he is the backdrop against which Ibra will be measured (both in game and in the analysis). It is 1:41 A:O with a alpha (the angle at the player) of 1.39 degrees.
Ibra’s is 1:40 with an alpha of 1.43 degrees.
The difference in the in the angles at the players is .04 degrees. To determine how far to the left Ibra appears compared to Pepe due to parallax, you set Ibra’s O to Pepe’s O, keep Ibra’s alpha the same, and solve for his A. Then you subtract his (and for the purposes of the exercise, Pepe’s) actual A.
Given these angles, parallax makes Ibra appear .025 yards (.9 inches) to the left when compared to the backdrop (Pepe). At greater distances of A, this parallax effect decreases (Ibra moves right). At greater distances between players across the field this parallax increases (Ibra moves left). As the camera move towards center, it increases, and decreases toward goal.
That’s not enough to make the left side of his torso and his head appear off.
[/trig]
Players and coaches don’t complain about it, because they know this is the kind of thing that happens when you try to run the trap. It’s such a damn close call that it will only ever come up in officials clinics to show that, yes, being offside by a head and shoulder is as good as being offside by five yards, and that arms should not be considered when determining offside.
(SBI-Appreciate the effort, but nope, don’t see it. He’s onside.)