A stunning double save from Cassano and Nagatomo was the highlight of a fine night's work, as he kept Inter at bay and preserved the result for his side.
Marked Milito completely out of the game and effectively thwarted the bits and pieces that were thrown his way by the Inter attack. Dominant in the air to boot - an admirable effort.
Games such as this will never be a true test of his defensive credentials, as the lack of goalmouth action meant that he was rarely forced out of his comfort zone. However, he looked the part from start to finish.
Matched the commanding displays from the rest of the colleagues, as he hardly put a foot wrong and made a few key tackles. Slipped a little during Inter's second-half surge, but recovered well.
A no-nonsense display at left back. Radu thwarted almost every attack that attempted to travel through his flank and communicated superbly with the rest of the defence.
Put in a tidy shift on bot sides of the ball in the middle of the park, as he worked hard to press his opponents while making decent use of the ball, playing safe and simple passes.
Ineffective with the ball in vital areas, and despite one or two brief flashes, he generally failed to accomplish anything of note in the attacking third. The playmaker that Inter need to replace Sneijder? Not on this evidence.
With Inter offering little in the way of an offensive punch, Ledesma was happy to sit deep and keep the ball moving around his team, while taking care of the isolated threat from the visitors.
Rather isolated on the wing, and twice came off second best when squaring up with Zanetti near the byeline. Substituted after failing to make his mark on proceedings.
An effective cog on the right for Lazio as, despite large spells of frustration, he came up with the goods in the end when he laid on the winner for Klose with a perfect through-ball.
Time and time again, Klose was crowded out and harried off the ball before he could even get his bearings. He had two great chances late on to shoot, but instead turned the ball over. But just when it all seemed like ending in frustration, his clinical instincts came to the fore 82 minutes in, as he latched onto a Ledesma pass to slot home coolly and give his side a priceless three points.
Handled all of the routine tasks required of him and should not be apportioned much blame for the Klose goal, such was the placement on the finish.
Blocked his fair share of shots and though he was not the most confrontational presence at the back, he more than made up for it with a series of timely interceptions. Hard to find fault in his performance today.
Ran his socks off in midfield and did a decent job of linking the back four with the rest of the midfield, while tracking back to make a few key tackles. Kept his discipline, but a few passes were wayward.
Hacked one clearance off the line and generally stood tall at the heart of the visitor’s defence. Did a good job marking Klose, making it hard for the veteran striker to find a glimpse on goal.
Offered his side precious little going forward and was rather lost for positioning in his own half. Lazio found a bit of joy down his flank.
Attempted to spark Inter forward with a few bursts of pace from deep, something which aided his team in the second half, though he saw a close-range rebound saved by Marchetti. Solid defensively, as he took care of his duties with little fuss.
Had a few opportunities to break with the ball at his feet from midfield. After being crowded out for a lot of the first half, he stepped up a gear after the break, driving his team forward from midfield, and coming close to a goal with a shot that hit the post.
Tried a little too hard today, as he was a tad reckless in midfield, picking up a deserved yellow card near the end of the first half after one too many fouls.
Along with the rest of the Inter midfield, he did a generally commendable job doing the dirty work off the ball. Worked hard to close down the space in front of the penalty area and mopped up loose balls effectively.
Managed to get on the ball a little more than his strike partner Milito, but his effectiveness was at the same forgettable level. Could not beat his man, nor play in any of his team-mates for goalscoring opportunities. Came close in the second half with a long range drive that was tipped onto the post.
Barely managed a touch on the ball, as the complete lack of service meant that he was a frustrated spectator for most of his time on the field.