Chelsea beat Tottenham 2-0 in the first leg of the Carabao Cup semi-finals. With the win, the Blues have one foot in the final.Kai Havertz opened the scoring for the Blues in the fifth minute. The German slotted in from a tight angle after some great work from Marcos Alonso down the left flank.Chelsea doubled their lead in the 34th minute when Ben Davies scored an own goal. Japhet Tanganga's headed clearance off Hakim Ziyech's free-kick hit Davies' shoulder, and ended up in the back of the net.Chelsea FC@ChelseaFCAdvantage Chelsea! #CheTot . .3:05 AM · Jan 6, 2022239474178Advantage Chelsea! 👌#CheTot . . https://t.co/3keVUoLDo2On that note, here's a look at the five talking points from the game:#5 Romelu Lukaku returns to Chelsea squadRomelu Lukaku makes a comeback.Romelu Lukaku returned to the Chelsea squad after missing the game against Liverpool last weekend. He was left out by Thomas Tuchel for disciplinary reasons after he had called out the German's coaching style, and how it did not favour him, during a controversial interview.It was not very well received by Tuchel. Lukaku has apologised to the former Paris Saint Germain manager, and also issued a public apology, following which he was recalled to the squad against Tottenham. Lukaku started the game, and was very well received by fans.ESPN FC@ESPNFCLukaku and the Chelsea fans have still got love for each other 3:31 AM · Jan 6, 20222638242Lukaku and the Chelsea fans have still got love for each other 💙 https://t.co/Bus2DKJJpg#4 Saul Niguez has a game to rememberSaul Niguez had a memorable outing for Chelsea.Saul Niguez dominated the centre of the park, pulling the strings for Chelsea. The former Atletico Madrid star was virtually omnipresent, and arguably had his best game for the Londoners.He won four of his six tackles, created two chances, won eight duels, made six, and intercepted the ball thrice during a masterclass performance.Squawka Football@SquawkaSaul Niguez's game by numbers vs. Tottenham:100% long ball accuracy89% pass accuracy69 touches55 passes6 tackles (most)3 interceptions (=most)2 shots2 chances created Dominating in the midfield. 3:35 AM · Jan 6, 20222459378Saul Niguez's game by numbers vs. Tottenham:100% long ball accuracy89% pass accuracy69 touches55 passes6 tackles (most)3 interceptions (=most)2 shots2 chances created Dominating in the midfield. 🙌 https://t.co/vuRZD84z38If he continues playing like this, he could cement a spot for himself in the squad.