Sergej Milinkovic-Savic created one goal for Ciro Immobile and curled in a great free kick, but Lazio were made to work very hard for this 2-1 win, as Spezia hit the woodwork twice.
Lazio's head coach 'knew Lazio would suffer here' between two big Champions League matches, so was 'satisfied' with the 2-1 victory against Spezia.
In the 10th round of Serie A, today Lazio faced Spezia. Spezia lost several goal opportunities in this game and hit the
twice. On the other hand, Immobile and Savic converted Lazio's few chances into goals to give Lazio a win.
I am satisfied, because I asked for determination, grit and passion, and we got that
," the coach told Sky Sport Italia.
"We knew that we could suffer here, as Spezia play good football and are well-organised, but despite returning home at 5.30am from Dortmund and then having to travel again to Cesena yesterday, we managed to work really hard.
"I had a lot of problems in attack, as Vedat Muriqi was at home, Joaquin Correa had a calf problem and Felipe Caicedo needed to take pain-killing injections in order to help me out today for half-an-hour. So I couldn't do without Immobile.
"Considering Spezia have these two wide men in the trident, they cause you problems with the wing-backs, but if we had been sharper and a little better rested, we could've certainly created more scoring opportunities.
"When 2-0 up at half-time, a team like ours cannot allow Nzola that goal on the counter-attack from midfield, because we should've been in control of that."
Inzaghi was also asked if he agrees that Lazio do not have the strength this season, especially in the Champions League.
"I believe we made the right signings this summer, but between injuries and COVID, we were short-staffed pretty much constantly and I haven't been able to rotate the squad.
"In terms of pure numbers of players and options, this year the club has done a very good job. I was chatting to the Borussia Dortmund coach and he agreed it was more stressful than ever, because between journeys and recovery time, you basically have to train the players on the pitch.
"That is particularly tricky in Serie A when you then have to take on very organised and well-coached teams like Spezia and Udinese, who have all week to prepare just for you."