Two goals from Frank Lampard helped maintain Chelsea's Premier League revival and sent Blackpool tumbling to a second successive defeat. John Terry gave the Blues a first-half lead after jumping unchallenged inside the box to head home a Lampard corner. Lampard then converted from the spot following Ian Evatt's foul on Salomon Kalou and scored his second from 16 yards when put through by Kalou. Jason Puncheon hit low beyond Petr Cech late on but it was merely consolation. Substitute Brett Ormerod and Evatt came close late on for Blackpool for what would have been an astonishing ending, but at least Ian Holloway's men can take some solace from the fact that Puncheon's goal ensures the Seasiders - who are two points above the relegation zone - remain above follow battlers West Brom. Blackpool have been sucked into a relegation battle after winning only one of their last nine matches. Six of their remaining 10 Premier League games are at Bloomfield Road, although perhaps manager Holloway would prefer that not to be the case as his men strangely have a better record away from home. For Chelsea, despite manager Carlo Ancelotti's pre-match protestations that his team were merely looking to secure a Champions League spot, talk of a late title bid will increase. They are now nine points behind leaders Manchester United with a game in hand and a trip to Old Trafford yet to come. Should they beat Manchester City at Stamford Bridge on 20 March in their next Premier League match, the odds on Chelsea defending their title will surely shorten. Chelsea's inspiration came from an unlikely source in the form of substitute Kalou, who replaced the injured Didier Drogba in the 55th minute. Kalou provided the visitors with the directness and potency that was lacking when Drogba and the subdued Fernando Torres were leading the attack. The Ivorian and Lampard combined impressively after the break and questions will, no doubt, again be raised about how best to accommodate Drogba and Torres - who has yet to score for the club since his £50m January arrival. Lampard played a part in the opening goal when terrible defending allowed Terry the freedom to jink inside the six-yard box and superbly connect with the midfielder's corner for his fourth goal of the season. The recalled Jose Bosingwa, showing impressive energy down the right in attack but perhaps susceptible in defence, nearly doubled the advantage soon afterwards only for Richard Kingson to stretch every sinew to prevent the defender's shot from curling into the top-left corner. Prior to the opening goal, Blackpool enjoyed plenty of possession but lacked the guile that suspended duo Charlie Adams and DJ Campbell could have provided. However, Puncheon sparked the home side into life when the on-loan Southampton midfielder set off on a mazy run in the 33rd minute and outmuscled David Luiz. The 24-year-old looked to have beaten Petr Cech with his low shot but, luckily for the Blues goalkeeper, the ball ricocheted off the inside of the post to safety. Blackpool were their usual entertaining selves but Chelsea were always dangerous at set pieces and in the dying minutes of the half the alert Kingson had to punch away a Lampard corner from the path of the advancing Terry. The home side were once again in the ascendancy after the break and appeared to have been given a slice of good fortune when Chelsea were forced into an unscheduled substitution when Drogba limped off after being struck above the hip. But it was replacement Kalou who was the architect of Chelsea's two goals as the lively Ivorian tumbled over Evatt's outstretched leg, leaving referee Mike Dean with little option but to award the penalty. Lampard, whose winning penalty helped Chelsea beat leaders United last week, sent Kingson the wrong way and shortly afterwards the midfielder made it four goals in as many matches after Kalou's defence-splitting pass sent him clear. Blackpool now faced an almost impossible task, which was made all the more difficult when Kingson was forced from the field with a knee injury and was replaced by reserve goalkeeper Mark Halstead for his Premier League debut. Holloway's side fought until the end and maintained their record of scoring in every home game when Stephen Crainey caught Bosingwa in possession. That led to Puncheon collecting a pass from James Beattie to coolly finish beyond Cech. Source: BBC